What’s Vulnerable › Vulnerabilities

CVE-2026-15281: User Access Manager <= 2.3.12 - Authenticated (Subscriber+) SQL Injection

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-05 · updated 2026-08-12
• Weakness: CWE-89

Description

The User Access Manager plugin for WordPress is vulnerable to Second-Order SQL Injection via the 'id' parameter of the wp_ajax_save-attachment-compat AJAX action in versions up to, and including, 2.3.12. This is due to insufficient validation on the objectId value stored in the saveAjaxAttachmentData() function and subsequent unparameterized concatenation in the addQueryExcludedPostFilter() function — the stored value is later retrieved from the database and used as an array key, then directly imploded into a SQL NOT IN() clause without integer casting or prepared statements. This makes it possible for authenticated attackers, with subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

Affected products

• gm_alex User Access Manager: through 2.3.12

References

• https://plugins.trac.wordpress.org/browser/user-access-manager/tags/2.3.12/src/Controller/Backend/PostObjectController.php#L103
• https://plugins.trac.wordpress.org/browser/user-access-manager/tags/2.3.12/src/Controller/Frontend/PostController.php#L275
• https://plugins.trac.wordpress.org/browser/user-access-manager/tags/2.3.12/src/UserGroup/AbstractUserGroup.php#L147
• https://plugins.trac.wordpress.org/browser/user-access-manager/tags/2.3.12/src/UserGroup/AbstractUserGroup.php#L253
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3607011%40user-access-manager%2Ftrunk%2Fsrc%2FController%2FFrontend%2FPostController.php&old=3447009%40user-access-manager%2Ftrunk%2Fsrc%2FController%2FFrontend%2FPostController.php&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/8ebfc52b-278c-49d5-9226-d28a59335d46?source=cve

Get alerted when CVE-2026-15281 or the next vulnerability affects your stack