CVE-2026-11766: 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, allowin
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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-11766
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-117660.25% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 16% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-11766 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Ultimate Member WordPress
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
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