CVE-2026-6641 json
Media Library Assistant <= 3.35 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'mla_link_href' Shortcode Parameter
published 2026-09-11 59 d ago modified 2026-09-11 58 d ago also EUVD-2026-76007
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
The Media Library Assistant plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'mla_gallery' shortcode in versions up to and including 3.35. This is due to insufficient input sanitization and output escaping on the mla_link_href parameter when mla_output is set to 'paginate_links', where the _paginate_links() function processes the value through mla_process_shortcode_parameter() and _replace_query_parameter() without proper URL escaping, then outputs it directly in href attributes without applying esc_url(). 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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 58 d ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- dglingren Media Library Assistant
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/13602c35-a0f7-4651-af9a-0be9e581893a?source=cve
- plugins.trac.wordpress.org /browser/media-library-assistant/tags/3.34/includes/class-mla-shortcodes.php#L39
- plugins.trac.wordpress.org /browser/media-library-assistant/trunk/includes/class-mla-shortcode-support.php#L2484
- plugins.trac.wordpress.org /browser/media-library-assistant/tags/3.34/includes/class-mla-shortcode-support.php#L2484
- plugins.trac.wordpress.org /browser/media-library-assistant/trunk/includes/class-mla-shortcode-support.php#L2449
- plugins.trac.wordpress.org /browser/media-library-assistant/tags/3.34/includes/class-mla-shortcode-support.php#L2449
- plugins.trac.wordpress.org /browser/media-library-assistant/trunk/includes/class-mla-shortcodes.php#L39
- plugins.trac.wordpress.org /changeset/3512155/
Sources
- CVE List CVE-2026-6641
- NVD CVE-2026-6641
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.