CVE-2025-13891

Summary

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.

Affected Software

Weaknesses

• CWE-22: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://www.wordfence.com/threat-intel/vulnerabilities/id/71e587ec-ceb6-48ca-9a1a-599d9d988b4d?source=cve
• 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#L160
• https://plugins.trac.wordpress.org/browser/modula-best-grid-gallery/tags/2.12.26/includes/admin/class-modula-gallery-upload.php#L411
• https://research.cleantalk.org/cve-2025-13891/
• 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=

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