CVE-2026-76010 json
Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery <= 4.4.1 - Authenticated (Custom+) Remote Code Execution via XML-RPC 'meta_data' Mass Assignment and Path Traversal
published 2026-10-31 8 d ago modified 2026-11-02 6 d ago also EUVD-2026-114701
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
The Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.4.1 via the render_image function. This is due to unrestricted mass assignment of caller-supplied meta_data keys onto the image model combined with missing realpath containment in path construction and a bypassable signature check on the public image delivery route. This makes it possible for authenticated attackers, with custom-level access and above, to execute code on the server. Exploitation requires the authenticated attacker to own at least one NextGEN gallery — a condition that can be satisfied by any Subscriber who was ever granted the 'NextGEN Manage gallery' capability, and that access is retained indefinitely due to the stored gallery-author equality fallback in _can_manage_gallery() even after the capability is revoked.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 6 d ago
Exploit prediction
0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- smub Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
- wordfence.com /threat-intel/vulnerabilities/id/36dcde20-0af2-4b8b-8637-9a070dffa8a1?source=cve
- plugins.trac.wordpress.org /browser/nextgen-gallery/tags/4.3.0/src/DataStorage/Manager.php#L2373
- plugins.trac.wordpress.org /browser/nextgen-gallery/tags/4.3.0/src/XMLRPC/Controller.php#L289
- plugins.trac.wordpress.org /browser/nextgen-gallery/tags/4.3.0/src/DataStorage/Manager.php#L1226
- plugins.trac.wordpress.org /browser/nextgen-gallery/tags/4.3.0/src/DynamicThumbnails/Controller.php#L33
- plugins.trac.wordpress.org /browser/nextgen-gallery/tags/4.3.0/src/XMLRPC/Controller.php#L69
- plugins.trac.wordpress.org /browser/nextgen-gallery/tags/4.3.0/src/DataStorage/Manager.php#L2951
- plugins.trac.wordpress.org /changeset/3699076/nextgen-gallery/trunk/src/DataStorage/Manager.php
Sources
- CVE List CVE-2026-76010
- NVD CVE-2026-76010
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.