XSS in Arevico Multi Functional Flexi Lightbox
CVE-2026-3347
The Multi Functional Flexi Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `arv_lb[message]` parameter in all versions up to, and including, 1.2 due to insufficient input sanitization and output escaping…
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.000 (14.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N.
Affected products
- Arevico Multi Functional Flexi Lightbox — versions 0
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/a4c0b14a-d039-4008-a433-ab360…
- plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/tags/1.2/sp…
- plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/tags/1.2/opt…
- plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/trunk/sp.php
- plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/trunk/option…
Frequently asked questions
- What is CVE-2026-3347?
- CVE-2026-3347 is a medium-severity vulnerability in Arevico Multi Functional Flexi Lightbox, classified under Cross-site Scripting. CVSS score: 5.5/10. Published 2026-03-21.
- How severe is CVE-2026-3347?
- Medium severity. CVSS v3 base score is 5.5 out of 10.