CVE-2026-6640CWE-79cross-site-scripting

CVE-2026-6640

Medium · published September 11, 2026

CVSS v3.1
6.4
EPSS
0%
Percentile
35.1
In the wild
Unconfirmed
What it is

The Media Library Assistant plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'mla_link_attributes' parameter in all versions up to, and including, 3.35 due to insufficient input sanitization and output escaping. 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
0.00419 · 35.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-11T12:16Z
References (10)
https://plugins.trac.wordpress.org/browser/media-library-assistant/trunk/includes/class-mla-shortcode-tag-cloud.php#L76-L95 · [email protected]https://plugins.trac.wordpress.org/changeset/3512155/ · [email protected]https://www.wordfence.com/threat-intel/vulnerabilities/id/ac0abf8e-6efd-4cf5-ad03-8442d892a35f?source=cve · [email protected]https://plugins.trac.wordpress.org/browser/media-library-assistant/tags/3.34/includes/class-mla-shortcode-support.php#L270-L283 · [email protected]https://plugins.trac.wordpress.org/browser/media-library-assistant/tags/3.34/includes/class-mla-shortcode-tag-cloud.php#L1041-L1046 · [email protected]https://plugins.trac.wordpress.org/browser/media-library-assistant/tags/3.34/includes/class-mla-shortcode-tag-cloud.php#L1089-L1106 · [email protected]https://plugins.trac.wordpress.org/browser/media-library-assistant/tags/3.34/includes/class-mla-shortcode-tag-cloud.php#L76-L95 · [email protected]https://plugins.trac.wordpress.org/browser/media-library-assistant/trunk/includes/class-mla-shortcode-support.php#L270-L283 · [email protected]https://plugins.trac.wordpress.org/browser/media-library-assistant/trunk/includes/class-mla-shortcode-tag-cloud.php#L1041-L1046 · [email protected]https://plugins.trac.wordpress.org/browser/media-library-assistant/trunk/includes/class-mla-shortcode-tag-cloud.php#L1089-L1106 · [email protected]
EPSS history
Timeline
  • 12 SEP 03:22Z
    EPSS moved — → 0%
    epss
  • 11 SEP 07:39Z
    Media Library Assistant <= 3.35 - Authenticated (Contributor+) Stored Cross-Site Scripting via mla_link_attributes Parameter
    cvelistv5