CVE-2026-8489

MEDIUM

Ultimate Member <= 2.11.4 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Non-HTML Custom Textarea Profile Field

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2026-8489 has a selected CVSS score of 6.4 (medium).

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.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Jul 6, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin

Browse ultimatemember / Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin

Default status: unaffected

CVE ListThrough 2.11.4affected

References

12