The Firelight Lightbox WordPress plugin before 2.3.16 does not sanitise and escape title attributes before outputting them in the page, which could allow users with a role as low as contributors to perform stored Cross-Site Scripting attacks.
Severity
CVSS 3.1
5.4 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-31)