CVE-2026-11766

Ultimate Member < 2.12.0 - Subscriber+ Stored XSS via Custom Textarea Profile Fields

CVSS 8 HIGHEPSS 0.2%

Vexday Risk Score

41Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

Exploit maturity

Proof of concept

Public proof of concept exists, but not yet automated.

CVSS 8EPSS 0.2%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

06 Jul 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

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

Affected products

Unknown · Ultimate Member

public PoCs found — 1

cve_referencewpscan.com/vulnerability/96adb2d3-af34-4455-97d4-90af58049e78/unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

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