Insufficient Nonce Verification in Filter Gallery Plugin by WordPress
CVE-2026-90978
Currently unrated
Key Information:
- Vendor
WordPress
- Status
- Vendor
- CVE Published:
- 18 September 2026
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-90978?
The Filter Gallery WordPress plugin prior to version 1.1.5 is susceptible to a security issue due to the absence of nonce verification in its AJAX handlers. This oversight permits low-privileged users to manipulate post content and erase settings related to the stored gallery options, thus compromising the integrity of the website. Proper nonce validation is crucial for safeguarding against unauthorized actions.
Affected Version(s)
Filter Gallery 1.1.2 < 1.1.5
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.