Media Library Assistant <= 3.35 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'mla_link_href' Shortcode Parameter
Summary
| CVE | CVE-2026-6641 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-11 08:16:47 UTC |
| Updated | 2026-09-11 08:16:47 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 6.4 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 6.4 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
| 3.1 | CNA | DECLARED | 6.4 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
ChangedConfidentiality
LowIntegrity
LowAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Dglingren | Media Library Assistant | affected 3.35 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| plugins.trac.wordpress.org/browser/media-library-assistant/tags/3.34/includes/class-mla-... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/changeset/3512155 | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/media-library-assistant/trunk/includes/class-mla-shor... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/media-library-assistant/tags/3.34/includes/class-mla-... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/media-library-assistant/trunk/includes/class-mla-shor... | [email protected] | plugins.trac.wordpress.org | |
| www.wordfence.com/threat-intel/vulnerabilities/id/13602c35-a0f7-4651-af9a-0be9e... | [email protected] | www.wordfence.com | |
| plugins.trac.wordpress.org/browser/media-library-assistant/tags/3.34/includes/class-mla-... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/media-library-assistant/trunk/includes/class-mla-shor... | [email protected] | plugins.trac.wordpress.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: gidget smith (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-04-20T05:06:38.000Z | Vendor Notified |
| CNA | 2026-09-10T00:00:00.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.