Stored Cross-Site Scripting Vulnerability in Optimole Plugin
CVE-2026-84829
8.8HIGH
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-84829?
The Optimole WordPress plugin, prior to version 4.2.12, has a vulnerability that arises from insufficient input validation, allowing unauthenticated users to inject arbitrary attributes into image tag attributes. This flaw can lead to Stored Cross-Site Scripting (XSS) attacks, effectively compromising web pages served to all visitors, as malicious scripts may be executed in users' browsers, resulting in unauthorized actions or data theft.
Affected Version(s)
Optimole 4.2.3 < 4.2.12
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.
References
CVSS V3.1
Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved
Credit
Jakub Herman
WPScan