CVE-2026-1359: Genolve Toolkit WordPress Privilege Escalation
TL;DR - CVE-2026-1359 affects Genolve Toolkit for WordPress through version 5.0.5. - Authenticated Contributor-level users can modify arbitrary WordPress options. - Patch to a version newer than 5.0.5 immediately; no confirmed in-the-wild exploitation is currently known.
Vulnerability at a Glance
| Field | Value |
|---|---|
| CVE ID | CVE-2026-1359 |
| CVSS v3.x | 8.8 (High) |
| Attack vector | Network |
| Privileges required | Low, authenticated Contributor-level access or higher |
| Patch available | Yes, issue is reported fixed after 5.0.5, but the exact fixed version was not directly confirmed from accessible primary-source text in this session |
CVE-2026-1359 is a high-severity privilege escalation issue in the Genolve Toolkit WordPress plugin, also described as the Genolve AI image and AI video generation plugin for WordPress. The vulnerability allows authenticated attackers with at least Contributor-level access to modify arbitrary WordPress options because the plugin fails to enforce a capability check in a settings-related function.
For defenders, the practical risk is not just plugin misconfiguration. Arbitrary WordPress option updates can become full administrative compromise when an attacker enables user self-registration and changes the default new-user role to administrator. In multi-user WordPress deployments, membership sites, and environments with many content contributors, that makes this bug operationally important even without evidence of mass exploitation.
What Is This Vulnerability?
The root cause is a missing capability check in the genolve_setOpt() function. In WordPress, sensitive state-changing actions should verify that the current user has the right capability before updating settings. When that check is missing or insufficient, lower-privileged users may be able to reach privileged functionality they should never control.
In this case, the exposed impact is arbitrary WordPress option modification by authenticated users with Contributor-level access and above. That matters because many important security and site-behavior settings in WordPress are stored as options. If a user who should only create or edit content can change global options, they can often move laterally into much higher privilege.
The CVE description specifically calls out two dangerous examples: enabling user registration and setting the default registration role to administrator. That sequence is a classic privilege-escalation path. An attacker with a low-privileged account can alter the site configuration, register a fresh account, and receive administrative rights automatically. Even if the plugin does not directly create an admin account, the arbitrary option update capability can still be enough to produce one indirectly.
Technical Notes
A capability check issue in WordPress commonly looks like this at a conceptual level:
function genolve_setOpt() {
// vulnerable pattern: updates options without checking current user capability
update_option($_POST['option_name'], $_POST['option_value']);
}
A safer implementation pattern would require an explicit authorization gate before updating options:
function genolve_setOpt() {
if ( ! current_user_can('manage_options') ) {
wp_die('Unauthorized');
}
update_option(
sanitize_text_field($_POST['option_name']),
sanitize_text_field($_POST['option_value'])
);
}
The specific vulnerable code diff was not directly retrievable in this session because the referenced WordPress Trac changeset returned HTTP 403 when fetched programmatically. Defenders should therefore treat the root-cause description as confirmed, while treating code-level patch details as not independently verified here.
Who Is Affected?
The affected product is the Genolve Toolkit WordPress plugin, publicly described as the Genolve AI image AI video generation plugin for WordPress. Based on the available source material, all versions up to and including 5.0.5 are affected.
That version range is the most important deployment filter for asset owners. If your WordPress instance has the plugin installed at 5.0.5 or earlier, you should assume it is vulnerable unless you have a vendor-backed exception or a confirmed custom patch. If your environment runs a later version, confirm with the official changelog or plugin Trac history that the update actually contains the fix for CVE-2026-1359.
The attacker prerequisite is also important: this is not an unauthenticated internet-wide RCE or one-click drive-by exploit. The attacker must already hold a valid authenticated account with at least Contributor privileges. That still creates serious exposure for sites with open registration, sites that grant Contributor roles to many users, educational or publishing environments, agencies managing shared content teams, and any WordPress deployment where account lifecycle controls are weak.
A site with only a few tightly controlled administrative users may view this as lower likelihood than an unauthenticated bug, but not lower impact. Any compromise of a Contributor account, whether through credential stuffing, phishing, password reuse, or malicious insiders, can become full administrative takeover if the vulnerable plugin is present.
CVSS Score Breakdown
The CVSS v3.x base score is 8.8, which places this vulnerability in the High severity range. That score is consistent with a flaw that is remotely reachable over the network, requires only low privileges, and can lead to significant integrity impact.
The likely key score components, based on the published description, align with a network-accessible authenticated privilege-escalation issue. The attack vector is effectively Network, because exploitation occurs through web access to the WordPress application. Privileges Required are Low, since Contributor access is sufficient. User interaction is not described as necessary after the attacker already has valid credentials.
On impact, the most significant effect is on Integrity, because an attacker can alter arbitrary WordPress options and change site security settings. There may also be downstream effects on Confidentiality and Availability once administrative control is obtained, but the core immediate impact described is unauthorized modification of data and privilege escalation. In practice, once an attacker becomes admin in WordPress, they often gain broad control over content, plugins, users, and potentially theme or plugin code paths.
For defenders, the main takeaway from the 8.8 score is not just severity labeling. It means this is a bug worth prioritizing despite the authentication requirement, especially in environments where Contributor accounts are common or where identity hygiene is hard to enforce consistently.
Exploitation Status
At the time of this writing, there is no confirmed evidence in the provided source set that CVE-2026-1359 is being actively exploited in the wild. It is not listed in CISA’s Known Exploited Vulnerabilities catalog, which means there is currently no CISA-confirmed exploitation signal from KEV.
There is also no public proof-of-concept exploit confirmed in the source material provided here. That does not mean exploit development is difficult. The vulnerability is conceptually straightforward: a low-privileged authenticated user reaches a plugin function that updates WordPress options without proper authorization checks. Issues like this are often reproducible by researchers or attackers once the patch diff is reviewed.
Because the patch-related WordPress Trac changeset is referenced publicly, defenders should assume that reverse engineering the fix may be feasible for motivated attackers even if a polished PoC has not yet been widely shared. In the absence of confirmed exploitation data, the correct defensive assumption is: medium likelihood of near-term weaponization in multi-user WordPress environments, high impact if a low-privileged account is compromised.
If you manage a site with any form of user registration, content contributor workflow, or shared editorial access, treat this as a patch-now issue rather than waiting for exploit telemetry to emerge.
How to Detect It
Start by identifying all WordPress assets running the Genolve Toolkit plugin and inventorying the installed version. Any instance at 5.0.5 or earlier should be treated as exposed. On a live site, you should also review WordPress configuration for suspicious changes to registration settings, especially if those settings were altered unexpectedly.
The strongest post-exploitation indicators for this CVE are configuration changes inconsistent with normal administration. In particular, investigate whether the following WordPress options changed without an approved admin action:
users_can_registerdefault_role
If users_can_register was enabled and default_role was changed to administrator, that is a high-confidence indicator of attempted or successful abuse matching the CVE’s documented impact path.
Review web server logs, WordPress audit logs, and plugin or admin AJAX requests tied to low-privileged accounts. If you have security plugins or centralized logging, pivot on Contributor accounts making state-changing requests to plugin endpoints followed by new user registrations or role anomalies.
Technical Notes
Example WP-CLI commands to inspect the most relevant WordPress options:
wp option get users_can_register
wp option get default_role
List installed plugin version:
wp plugin list | grep genolve
Review recently created administrator accounts:
wp user list --role=administrator --fields=ID,user_login,user_email,user_registered
Example Apache or Nginx access-log hunting pattern for suspicious plugin option updates by authenticated users. Exact paths may vary, so search for genolve plus POST requests and authenticated sessions:
grep -Ei 'POST .*genolve|admin-ajax\.php|wp-admin/.*genolve' /var/log/nginx/access.log
grep -Ei 'POST .*genolve|admin-ajax\.php|wp-admin/.*genolve' /var/log/apache2/access.log
Example Splunk query to hunt for likely exploitation attempts:
index=web_logs (uri_path="*admin-ajax.php*" OR uri_path="*wp-admin*")
("genolve" OR "setOpt" OR "option")
method=POST
| stats count min(_time) as firstSeen max(_time) as lastSeen by src_ip, user, uri_path, http_status
Example Sigma-style logic concept for SIEM translation:
title: WordPress Genolve suspicious option modification
logsource:
category: webserver
detection:
selection:
request_method: POST
keywords:
- "genolve"
- "setOpt"
- "users_can_register"
- "default_role"
condition: selection and keywords
level: high
If you do not have plugin-specific logging, fall back to behavioral detection: low-privileged account activity followed by option changes, user registration enablement, or new administrator creation.
Mitigation and Patching
The affected range is clearly stated as all versions through 5.0.5, inclusive. The vulnerability is reported fixed in a later release, but the exact fixed version number could not be directly confirmed from primary-source text retrieved in this session because the referenced WordPress Trac changeset was not accessible programmatically. The safest operational guidance is to upgrade immediately to the latest version currently available from the official WordPress plugin repository or the vendor, and verify in the changelog that it includes the authorization fix for CVE-2026-1359.
If you cannot patch immediately, reduce exposure by limiting or disabling Contributor access, enforcing MFA on all WordPress users, reviewing open registration settings, and temporarily disabling the plugin if business impact allows. Because the issue requires authentication, rapid containment can also include credential resets for Contributor and Author accounts, plus reviewing any third-party or dormant accounts that do not need continued access.
You should also inspect whether the site has already been tampered with before and after patching. If registration was enabled or the default role changed, revert those options, enumerate all administrator accounts, reset credentials, rotate application secrets where applicable, and review plugin/theme integrity. Patching alone does not remove malicious accounts or reverse hostile configuration changes.
Technical Notes
Upgrade to the latest available plugin release from the official source. Example WP-CLI workflow:
wp plugin update genolve-toolkit
wp plugin list | grep genolve
If the plugin slug differs in your environment, verify the exact slug first:
wp plugin list
Temporary mitigation by deactivating the plugin:
wp plugin deactivate genolve-toolkit
Check and restore high-risk WordPress options:
wp option get users_can_register
wp option get default_role
wp option update users_can_register 0
wp option update default_role subscriber
Enumerate and review administrator accounts after containment:
wp user list --role=administrator --fields=ID,user_login,user_email,user_registered
If you use filesystem-based deployment or configuration management, ensure the updated plugin version is pinned in your deployment manifest and not overwritten by an older artifact on the next release.
References
The primary known fact set for this CVE comes from the published vulnerability description and referenced ecosystem records. The most authoritative anchor for defenders is the CVE/NVD record stating that the issue affects all versions up to and including 5.0.5 and involves a missing capability check in genolve_setOpt().
The publicly referenced WordPress Trac changeset appears to document the remediation, but it was not directly retrievable in this session due to HTTP 403. Because of that, defenders should use it as a pointer for additional validation rather than treating unverified patch-diff details as settled without checking directly through a browser or trusted mirror.
- NVD: https://nvd.nist.gov/
- CISA Known Exploited Vulnerabilities Catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- WordPress plugin page: https://wordpress.org/plugins/genolve-toolkit
- Genolve vendor site: https://www.genolve.com
- WordPress Trac changeset reference: https://plugins.trac.wordpress.org/changeset?reponame=&new=3460465%40genolve-toolkit&old=3432371%40genolve-toolkit
- Wordfence vulnerability reference: https://www.wordfence.com/threat-intel/vulnerabilities/id/8f64361a-e5b5-4481-b25c-bdffeb80c198?source=cve
For further insights on security best practices, consider reading our articles on Dynamic Application Security Testing (DAST) and Incident Response Plans.
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