File Validation Flaw in Photo Gallery and Sliders Plugin by WordPress
CVE-2026-81650

Currently unrated

Key Information:

Vendor

WordPress
Status
Photo Gallery, Sliders, Proofing And Themes
Vendor
CVE Published:
20 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-81650?

The Photo Gallery, Sliders, and Proofing WordPress plugin prior to version 4.5.0 contains a significant flaw in its handling of file extensions from uploaded archives. A programming oversight, where a loop counter variable is reused, causes the file extension check to always succeed. This vulnerability enables users with gallery-management capabilities—assigned by administrators—to upload arbitrary files to a web-accessible directory. On systems capable of executing the uploaded files, an attacker could potentially run arbitrary code, posing a severe threat to website security.

Affected Version(s)

Photo Gallery, Sliders, Proofing and Themes 0 < 4.5.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-81650 - Proof of Concept

References

https://wpscan.com/vulnerability/7c1443ae-14b4-43ca-bb1a-...
exploitvdb-entrytechnical-description

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Alihan Şahin
WPScan
.