CVE-2026-8489
Last modified
CVE-2026-8489 is a medium-severity vulnerability rated 6.4/10 on the CVSS scale. The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'about_me' parameter in all versions up to, and including, 2.11.4 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.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.
Description
The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'about_me' parameter in all versions up to, and including, 2.11.4 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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| ultimatemember | Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin | <= 2.11.4 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-8489?
How severe is CVE-2026-8489?
How do I fix CVE-2026-8489?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-84884IBM Guardium Data Protection 12.2 stores internal REST servi…8.8
- CVE-2026-84885A vulnerability has been found in simular-ai Agent-S 0.3.1/0…4.3
- CVE-2026-84886A vulnerability was determined in simular-ai Agent-S up to 0…5.3
- CVE-2026-84887A vulnerability was identified in simular-ai Agent-S up to 0…4.3
- CVE-2026-84888A weakness has been identified in RightNow-AI OpenFang up to…4.3
- CVE-2026-84889IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote a…8.8
- CVE-2026-84890undici's decompress interceptor decompresses response bodies…5.9
- CVE-2026-84891IBM Guardium Data Protection 12.0, 12.1, and 12.2 could allo…7.5
- CVE-2026-84893IBM Guardium Data Protection 12.2 is vulnerable to SQL injec…6.5
- CVE-2026-84894In moxygen before commit 004123dd24c3, MoQSession::dataStrea…7.5
- CVE-2026-84895In proxygen from v2026.04.06.00 until v2026.09.28.00, QuicWt…7.3
- CVE-2026-84896The King Addons for Elementor WordPress plugin before 51.1.…6.8
Are you affected by CVE-2026-8489?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST