Dashboard / CVE-2026-109234

CVE-2026-109234

HIGH
MEDIUM Priority: 0.03 BB Relevance: 74/100
Published: 2026-10-31 Modified: 2026-10-31 First seen: 2026-10-31 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Changed
C: Low
I: Low
A: None

Description

The Meow Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'post_content (bbPress reply body)' parameter in all versions up to, and including, 5.6.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the administrator to have enabled Output Buffering, the HtmlDomParser engine, and Aggressive Resolve, as well as a stored-HTML submission surface (such as bbPress anonymous replies) whose kses allow-list preserves img attributes; given these preconditions, a one-shot unauthenticated submission can execute arbitrary JavaScript in the context of any user who views the affected page.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
tigroumeow Meow Lightbox 0

References & Advisories (8)

Bug Bounty Relevance

74 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.2 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.38%
Raw Score 0.003830
Percentile 32.4%
Date 2026-10-31

Intelligence Sources

mitre ref →
nvd ref →

External Links