CVE-2026-76010
8.8, highSmub Photo Gallery, Sliders, Proofing and Themes - NextGEN Gallery Unrestricted Upload of File with Dangerous Type Vulnerability
- CVSS
- 8.8, high high CVSS v3.1
- EPSS, next 30 days
- 1% higher than 66.3% of scored CVEs
- Exploitation
- No public evidence
- Published
- 31 Oct 2026yesterday
Description
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.
Details
- Vendor
- Smub
- Product
- Photo Gallery, Sliders, Proofing and Themes - NextGEN Gallery
- Weakness
- CWE-434 (opens in a new tab)
- Status
- Received
- Updated
- 31 Oct 2026
- Assigner
- security@wordfence.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References 8
Other references 8
- plugins.trac.wordpress.org /browser/nextgen-gallery/tags/4.3.0/src/DataStorage/Manager.php#L1226 (opens in a new tab)
- plugins.trac.wordpress.org /browser/nextgen-gallery/tags/4.3.0/src/DataStorage/Manager.php#L2373 (opens in a new tab)
- plugins.trac.wordpress.org /browser/nextgen-gallery/tags/4.3.0/src/DataStorage/Manager.php#L2951 (opens in a new tab)
- plugins.trac.wordpress.org /browser/nextgen-gallery/tags/4.3.0/src/DynamicThumbnails/Controller.php#L33 (opens in a new tab)
- plugins.trac.wordpress.org /browser/nextgen-gallery/tags/4.3.0/src/XMLRPC/Controller.php#L289 (opens in a new tab)
- plugins.trac.wordpress.org /browser/nextgen-gallery/tags/4.3.0/src/XMLRPC/Controller.php#L69 (opens in a new tab)
- plugins.trac.wordpress.org /changeset/3699076/nextgen-gallery/trunk/src/DataStorage/Manager.php (opens in a new tab)
- wordfence.com /threat-intel/vulnerabilities/id/36dcde20-0af2-4b8b-8637-9a070dffa8a1?source=cve (opens in a new tab)
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
Other Smub CVEs
Every Smub CVE we holdSame vendor in what we hold, not a known link between the flaws.
- CVE-2026-82814 Smub Duplicator - Backups & Migration Plugin - Cloud Backups, Scheduled Backups, & More Deserialization of Untrusted Data Vulnerability EPSS 0.7% 8.8, high
Beyond this page
Is CVE-2026-76010 in your network?
This page tells you how dangerous CVE-2026-76010 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.
-
EXYS7600 OCELOT
Find it before attackers do
Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-76010 comes with the devices to patch.
Learn more about EXYS7600 OCELOT -
EXYS7950 KONDRA
Detect it if it's exploited
Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.
Learn more about EXYS7950 KONDRA
Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 1 Nov 2026, not the live upstream state.