Unvalidated URL Handling in Link Library Plugin by WordPress
CVE-2026-78397
Currently unrated
Key Information:
- Vendor
WordPress
- Status
- Vendor
- CVE Published:
- 25 September 2026
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-78397?
The Link Library plugin for WordPress prior to version 7.9.6 suffers from a security flaw due to improper URL validation. When a user submits a URL, the plugin may revert to making requests to potentially unsafe internal network resources if the input is deemed unsafe. This lack of validation enables unauthenticated users to interact with the plugin's public link submission feature, which may inadvertently expose sensitive internal service responses, posing a risk to the site's security.
Affected Version(s)
Link Library 7.8.8 < 7.9.6
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.