CVE-2025-13891

Description

The Image Gallery – Photo Grid & Video Gallery plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 2.13.3. This is due to the modula_list_folders AJAX endpoint that lacks proper path validation and base directory restrictions. While the endpoint verifies user capabilities (Author+ with upload_files and edit_posts permissions), it fails to validate that user-supplied directory paths reside within safe directories. This makes it possible for authenticated attackers, with Author-level access and above, to enumerate arbitrary directories on the server via the modula_list_folders endpoint.

CVSS v3.1 Score

6.5

MEDIUM

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

Weakness Type (CWE)

CWE-22 Path Traversal

References

Other References

https://plugins.trac.wordpress.org/browser/modula-best-grid-gallery/tags/2.12.26/includes/admin/class-modula-gallery-upload.php#L160 https://plugins.trac.wordpress.org/browser/modula-best-grid-gallery/tags/2.12.26/includes/admin/class-modula-gallery-upload.php#L230 https://plugins.trac.wordpress.org/browser/modula-best-grid-gallery/tags/2.12.26/includes/admin/class-modula-gallery-upload.php#L411 https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3414176%40modula-best-grid-gallery%2Ftrunk&old=3407949%40modula-best-grid-gallery%2Ftrunk&sfp_email=&sfph_mail= https://research.cleantalk.org/cve-2025-13891/ https://www.wordfence.com/threat-intel/vulnerabilities/id/71e587ec-ceb6-48ca-9a1a-599d9d988b4d?source=cve

Frequently Asked Questions

What is CVE-2025-13891? +

The Image Gallery – Photo Grid & Video Gallery plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 2.13.3. This is due to the modula_list_folders AJAX endpoint that lacks proper path validation and base directory restrictions. While the endpoint verifies user capabilities (Author+ with upload_files and edit_posts permissions), it fails to validate that user-supplied directory paths reside within safe directories. This makes it possible for authenticated attackers, with Author-level access and above, to enumerate arbitrary directories on the server via the modula_list_folders endpoint. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-13891? +

CVE-2025-13891 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2025-13891? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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