CVE-2026-4791CWE-79cross-site-scripting

CVE-2026-4791

Medium · published October 10, 2026

CVSS v3.1
6.4
EPSS
0%
Percentile
7.9
In the wild
Unconfirmed
What it is

The PeproDev Ultimate Profile Solutions plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `logout-url` shortcode's 'button' attribute in all versions up to, and including, 8.2.36 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The record
Technical detail
CVSS v3.1
6.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00187 · 7.9th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-10-10T13:16Z
References (3)
https://plugins.trac.wordpress.org/browser/peprodev-ups/tags/8.2.7/login/login.php#L1110 · [email protected]https://plugins.trac.wordpress.org/changeset/3719931/peprodev-ups · [email protected]https://www.wordfence.com/threat-intel/vulnerabilities/id/b33f655a-ad13-45d8-bad9-e7c2599c2490?source=cve · [email protected]
EPSS history
Timeline
  • 11 OCT 03:30Z
    EPSS moved — → 0%
    epss
  • 10 OCT 08:26Z
    PeproDev Ultimate Profile Solutions <= 8.2.36 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'button' Attribute
    cvelistv5
  • 10 OCT 08:26Z
    PeproDev Ultimate Profile Solutions <= 8.2.36 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'button' Attribute
    cvelistv5