CVE-2026-125454

WordPress Passster plugin <= 4.3.21 - Cross Site Scripting (XSS) vulnerability

Published Nov 11, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WP Chill Passster content-protector allows Stored XSS.This issue affects Passster: from n/a through 4.3.21.

Remediation

Vendor Solution

Update the WordPress Passster plugin to the latest available version (at least 4.3.22).

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions passster
Wpchill
Wpchill passster
Vendors & Products Wordpress-extensions
Wordpress-extensions passster
Wpchill
Wpchill passster
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WP Chill Passster content-protector allows Stored XSS.This issue affects Passster: from n/a through 4.3.21.
Title WordPress Passster plugin <= 4.3.21 - Cross Site Scripting (XSS) vulnerability
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Patchstack
Published
Updated
Nov 11, 2026, 1:42 PM
Reserved
Nov 10, 2026, 12:26 AM
Status
Deferred
Published
Nov 11, 2026, 1:17 PM
Modified
Nov 11, 2026, 2:17 PM