CVE-2026-85680High· 8.8▾ Twilight

The Ultimate Member WordPress plugin before 2.13.1 does not escape a value derived from user supplied profile names before outputting it in the page title, and decodes HTML entities in it after its own sanitisation has already run, allo…

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score48/ 100 · Moderate

impact 48.4 · likelihood 0.1 · exploitation 0

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Proof of concept

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Published

Sep 19, 2026

Updated

Sep 21, 2026

CVSS

8.8

Vendor

—

Product

Ultimate Member

CWE

CWE-79

Depth score

48 · Moderate

EPSS

0.28% · p20

Platforms

—

Source

NVD

Vector

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

CISA SSVC

decided 2026-09-19

Exploitation: none
Automatable: no
Technical impact: total

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Sep 19.

0.2% → 0.3%▲ 0.1%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

6 events · 2 days

Sep 19, 2026Published
Disclosed via NVD
Sep 19, 2026EPSS first tracked
0.2%
Sep 19, 2026CVSS changed
— → 8.8
Sep 19, 2026Severity changed
none → high
Sep 20, 2026EPSS peak
0.2% → 0.3%
Sep 21, 2026Record revised
Last analysed / modified upstream

CWE-79 #nvd #cve.org

Affected

ultimate_member < 2.13.1

Full technical detail▾

Overview

The Ultimate Member WordPress plugin before 2.13.1 does not escape a value derived from user supplied profile names before outputting it in the page title, and decodes HTML entities in it after its own sanitisation has already run, allowing unauthenticated attackers who register an account to store JavaScript that will execute when any visitor, including an administrator, views their profile.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

[email protected] — https://wpscan.com/vulnerability/a49b734f-2244-4d6f-8912-b4ce6ba9eb0f/

Change history

Field changes observed since this record was first indexed.

Sep 19, 2026CVSS — → 8.8
Sep 19, 2026Severity none → high

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org

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