Description
The Responsive Lightbox & Gallery WordPress plugin before 2.5.3 does not properly handle HTML tag attributes modifications, potentially allowing unauthenticated attackers to abuse the functionality to include event handlers and conduct Stored XSS attacks.
References1
Metrics
- CVSS 3.1
-
6.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L - EPSS — exploit probability
- 0% percentile: 12 · as of 9 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.