Unauthorized Access in MetForm WordPress Plugin Allows Data Exposure
CVE-2026-86834
Currently unrated
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-86834?
The MetForm WordPress plugin prior to version 4.3.1 contains a security flaw that fails to sufficiently restrict access to a debug file created in the web root during form submissions, especially when the HubSpot Forms integration is active. This oversight permits unauthorized attackers to retrieve sensitive upstream API response data, which may include correlation identifiers and cookies, posing a significant risk to user privacy and data integrity.
Affected Version(s)
MetForm 2.2.1 < 4.3.1
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.