CVE-2026-18547Ultimate Member <= 2.12.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Textarea Profile Field with HTML Support (DOM Gadget via id Attribute)
Updated under an hour ago ()
Does this affect you?
It affects ultimatemember Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Textarea Profile Field with HTML Support (DOM Gadget via id Attribute) in all versions up to, and including, 2.12.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is possible because the wp_kses 'templates' allowlist permits the id attribute on div elements but does not neutralize unescaped quotes within its value; when pickadate.js concatenates the stored id value into an HTML string via jQuery .html() on profile page load, the smuggled onfocus and autofocus attribute syntax breaks out of attribute context and executes as JavaScript.
- CVSS
- 6.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Aug 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
ultimatemember Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin ultimatemember:ultimate_member_user_profile_registration_login_member_directory_content_restriction_and_membership_plugin (from the name) | through 2.12.1 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a7961bcc-eae7-40e1-8838-9755c7655500?source=cve
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.12.1/includes/core/class-form.php#L853
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.12.1/includes/class-functions.php#L580
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.12.1/assets/js/common.js#L51
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/core/class-form.php#L853
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/class-functions.php#L580
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/assets/js/common.js#L51
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3663931%40ultimate-member&new=3663931%40ultimate-member
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.