CVE-2026-6642 json
Media Library Assistant <= 3.35 - Authenticated (Author+) Stored Cross-Site Scripting via Bulk Edit Preset Export/Import
published 2026-09-11 59 d ago modified 2026-09-11 58 d ago also EUVD-2026-76008
- 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 bulk edit preset export/import mechanism in versions up to and including 3.35. This is due to insufficient output escaping on preset field values when they are rendered in HTML attribute contexts in the mla_generate_bulk_edit_form_fieldsets() function and mla-bulk-edit-fieldsets.tpl template. While wp_kses() filtering is applied during preset export for users without unfiltered_html capability, this does not prevent attribute injection attacks since the malicious payload consists of quotes and HTML attributes rather than HTML tags. When preset values are retrieved and rendered, they are directly assigned to template variables without esc_attr() escaping and then inserted into input element value attributes via simple string replacement. This makes it possible for authenticated attackers, with Author-level access and above (upload_files capability), to inject arbitrary web scripts that execute when an administrator imports the poisoned preset and the targeted input field receives focus.
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/6e45dc8a-b777-4a49-b1b1-c59ffa75f5b4?source=cve
- plugins.trac.wordpress.org /browser/media-library-assistant/trunk/tpls/mla-bulk-edit-fieldsets.tpl#L70
- plugins.trac.wordpress.org /browser/media-library-assistant/tags/3.35/tpls/mla-bulk-edit-fieldsets.tpl#L70
- plugins.trac.wordpress.org /browser/media-library-assistant/trunk/includes/class-mla-edit-media.php#L647-L651
- plugins.trac.wordpress.org /browser/media-library-assistant/tags/3.35/includes/class-mla-edit-media.php#L647-L651
- plugins.trac.wordpress.org /browser/media-library-assistant/trunk/includes/class-mla-ajax.php#L395
- plugins.trac.wordpress.org /browser/media-library-assistant/tags/3.35/includes/class-mla-ajax.php#L395
- plugins.trac.wordpress.org /changeset/3512155/
Sources
- CVE List CVE-2026-6642
- NVD CVE-2026-6642
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.