Media Library Assistant link attributes permit contributor stored XSS

Media Library Assistant through 3.35 does not sufficiently sanitize or escape the Contributor-controlled mla_link_attributes shortcode parameter. An attacker can store script-bearing attributes that execute when a user views the affected page. The authoritative export identifies the parameter but does not disclose the shortcode name, processing function, or exact output context.

CVE / CNA score 6.4 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: Media Library Assistant
Plugin slug: media-library-assistant
Affected: <= 3.35
Safe version: See mitigation notes
Published: Sep 11, 2026
Weakness: CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Sep 11, 2026 and is one of 40 known issues for this plugin.

What to do

Update, patch or deactivate.

The authoritative export does not identify the first fixed release. Obtain a vendor-confirmed update after 3.35 and review Contributor-authored Media Library Assistant shortcodes containing mla_link_attributes. The application-level fix must parse an allowlist of supported attributes and escape each value for its exact HTML context.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References

Primary and upstream sources

Data attribution: This product uses the NVD API but is not endorsed or certified by the NVD.

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