Information disclosure in ultimatemember Ultimate Member – User Profile, Registration…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.
Summary
The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.11.0 via the ajax_get_members function. This is due to the use of a predictable low-entropy token (5 hex characters derived from md5 of post ID) to identify member directories and insufficient authorization checks on the unauthenticated AJAX endpoint. This makes it possible for unauthenticated attackers to extract sensitive data including usernames, display names, user roles (including administrator accounts), profile URLs, and user IDs by enumerating predictable directory_id values or brute-forcing the small 16^5 token space.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ultimatemember | Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin | up to 2.11.0 | — | No fix listed | CNA |
- Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin Vendorultimatemember Affected up to 2.11.0 Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ultimatemember:ultimate_member:*:*:*:*:*:*:*:* | — | — | ultimatemember |
- cpe:2.3:a:ultimatemember:ultimate_member:*:*:*:*:*:*:*:* Versions — — ·ultimatemember
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-12492
- 2026-10-03 Alias added: GHSA-r45x-wwcf-qpg2
References
Other 7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/61337d2d-d15a-45f2-b730-fc034eb3cd31?source=cve
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.10.6/templates/members.php#L26
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.10.6/includes/core/class-ajax-common.php#L61
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.10.6/includes/core/class-member-directory.php#L2795
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.10.6/includes/core/class-member-directory.php#L205
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.10.6/includes/class-functions.php#L41
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3421362%40ultimate-member%2Ftrunk&old=3408617%40ultimate-member%2Ftrunk&sfp_email=&sfph_mail=
More ultimatemember vulnerabilities
- TI-2024-00992 SQL injection in ultimatemember Ultimate Member – User Profile, Registration, Login… CVSS 3.1CRITICAL 9.8
- TI-2023-03232 Ultimate Member < 2.6.7 - Unauthenticated Privilege Escalation CVSS 3.1CRITICAL 9.8
- TI-2022-03726 JobBoardWP < 1.2.2 - Unauthenticated Arbitrary File Upload CVSS 3.1HIGH 7.5
- TI-2020-19304 WordPress Plugin ultimate-member 2.1.3 Local File Inclusion CVSS 4.0MEDIUM 6.8
- TI-2024-01973 Ultimate Member <= 2.8.3 - Unauthenticated Stored Cross-Site Scripting CVSS 3.1HIGH 7.2
- TI-2020-18475 An issue was discovered in the Ultimate Member plugin before 2.1.12 for WordPress, aka… CVSS 3.1CRITICAL 10.0
Sources
- CVE-2025-12492 · CVE Program
- CVE-2025-12492 · NVD
- FIRST EPSS
- GHSA-r45x-wwcf-qpg2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences