CVE-2025-13646: modula image File Upload RCE — Fix

Description

The Modula Image Gallery plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'ajax_unzip_file' function in versions 2.13.1 to 2.13.2. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files with race condition on the affected site's server which may make remote code execution possible.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-434 Unrestricted Upload

Affected Products

Vendor	Product	Versions
wpchill	modula_image_gallery	2.13.1 — 2.13.3

References

Advisories & Patches

https://plugins.trac.wordpress.org/changeset/3395701/modula-best-grid-gallery#file5 https://plugins.trac.wordpress.org/changeset/3407949/modula-best-grid-gallery

Other References

https://github.com/WPChill/modula-lite/blob/master/includes/admin/class-modula-gallery-upload.php#L1103 https://github.com/WPChill/modula-lite/commit/90c8eb982f71b31584d9be9359e3b594e03927d7 https://www.wordfence.com/threat-intel/vulnerabilities/id/59ee0ca2-846d-4ae8-ad19-7c3826861aeb?source=cve

Frequently Asked Questions

What is CVE-2025-13646? +

The Modula Image Gallery plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'ajax_unzip_file' function in versions 2.13.1 to 2.13.2. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files with race condition on the affected site's server which may make remote code execution possible. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-13646? +

CVE-2025-13646 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-13646? +

CVE-2025-13646 affects products from wpchill, specifically: modula_image_gallery. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-13646? +

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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