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CVE-2026-118191

Photo Gallery, Sliders, Proofing and Themes <= 4.5.5 - Authenticated (Custom+) Arbitrary File Deletion via 'task_list' and 'app_config' Parameters

Severity
High 8.1
Published
13 Nov 2026
Last changed
13 Nov 2026
Added to UpHeron
13 Nov 2026
Weakness
Path traversal (CWE-22)
Attack
Over the network · Needs a user account · No user action needed
Attacker can
Change data · Take it down
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Sources
CVE Program

Description

The Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the handle_job function in all versions up to, and including, 4.5.5 This makes it possible for authenticated attackers, with custom-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). The 'NextGEN Manage gallery' capability required to reach the vulnerable endpoint is granted to Administrators by default but can be delegated to lower-privileged roles via the plugin's Roles screen.

From the CVE Program.

Affected software

SoftwareAffected versions
Nextgen Gallery (WordPress plugin)WordPress plugins · wp-plugin:nextgen-gallery
  • Every version up to 4.5.5

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-118191