CVE-2026-11766 — HIGH (8.0)

Vulnerability Description

The Ultimate Member WordPress plugin before 2.12.0 does not properly sanitise and escape the value of custom textarea profile fields before outputting it on user profiles, allowing authenticated users with Subscriber-level access and above to store JavaScript that executes when any user, including an administrator, views the affected profile.

CVSS Score

8.0

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

References

https://wpscan.com/vulnerability/96adb2d3-af34-4455-97d4-90af58049e78/

FAQ

What is CVE-2026-11766?

CVE-2026-11766 is a vulnerability with a CVSS score of 8.0 (HIGH). The Ultimate Member WordPress plugin before 2.12.0 does not properly sanitise and escape the value of custom textarea profile fields before outputting it on user profiles, allowing authenticated user...

How severe is CVE-2026-11766?

CVE-2026-11766 has been rated HIGH with a CVSS base score of 8.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-11766?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.