Cross Site Scripting Vulnerability in WP QuickLaTeX Plugin by WordPress
CVE-2026-81776

7.1HIGH

Key Information:

Vendor

WordPress
Status
WP Quicklatex
Vendor
CVE Published:
3 September 2026

What is CVE-2026-81776?

An unauthenticated Cross Site Scripting (XSS) vulnerability has been identified in the WP QuickLaTeX plugin for WordPress. This security flaw affects versions 3.8.8 and earlier, allowing attackers to inject malicious scripts into web pages viewed by users. If exploited, this vulnerability can lead to unauthorized access and potentially compromise sensitive user data.

Affected Version(s)

WP QuickLaTeX <= 3.8.8

References

https://patchstack.com/database/wordpress/plugin/wp-quick...
vdb-entry

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

theviper17 | Patchstack Bug Bounty Program
.