CVE-2026-91829

HIGH CVSS 3.1: 7.1 EPSS 0.17%
Updated Oct 11, 2026
Unknown
Parameter Value
CVSS 7.1 (HIGH)
Affected Versions before 2.3.3
Type CWE-79 (Cross-Site Scripting (XSS)), CWE-79 Cross-Site Scripting (XSS)
Vendor Unknown
Public PoC No

The Subscribe to Comments WordPress plugin before 2.3.3 does not properly validate a parameter before reflecting it into a link target, allowing unauthenticated attackers to perform Reflected Cross-Site Scripting via a crafted URL against anyone who clicks it, including administrators.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption

CVSS Vector v3.1

Vulnerable Products

unknown:subscribe to comments