Modula Image Gallery – Photo Grid & Video Gallery: Arbitrary file deletion

Modula Image Gallery (affected: <= 3.0.2). An Author or higher can supply a file path to upload_image() and delete files they do not own. Checking edit_post on the attacker's own gallery does not authorize deletion of another user's attachment; restricting paths to wp-content/uploads also fails to establish ownership. The precise request parameter and route are unspecified.

CVE / CNA score 8.1 CVSS 3.1 · security@wordfence.com

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

Component: Modula Image Gallery – Photo Grid & Video Gallery
Plugin slug: modula-best-grid-gallery
Affected: <= 3.0.2
Safe version: See mitigation notes
Published: Sep 25, 2026
Weakness: CWE-862 — Missing Authorization

This CVE was published Sep 25, 2026 and is one of 14 known issues for this plugin.

What to do

Update, patch or deactivate.

This archive could not verify a fixed version from the official author release notes reviewed on 2026-10-13. Disable the affected feature or component where practical until remediation for the deployed configuration is established. Resolve files from trusted attachment IDs and enforce attachment ownership or the appropriate delete capability before deletion, as well as canonical-path containment. Restrict gallery uploads until fixed. Official author release notes: https://wordpress.org/plugins/modula-best-grid-gallery/.

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 Modula Image Gallery – Photo Grid & Video Gallery plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the upload_image function in all versions up to, and including, 3.0.2. This makes it possible for authenticated attackers, with author-level access and above, to delete arbitrary files on the server. The path restriction to wp-content/uploads is not an effective ownership boundary, as all user attachment files reside within that tree, and Authors trivially satisfy the edit_post check on their own galleries.

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

References

Primary and upstream sources

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