CVEvulnerability
CVE-2026-3347
5.5 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-03-21
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79
Description
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. This is due to the `arv_lb_options_val()` sanitize callback returning user input without any sanitization, and the stored `message` value being output in the `genLB()` function without escaping. This makes it possible for authenticated attackers, with Administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses a page or post with the lightbox enabled.
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/tags/1.2/options.php#L94 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/tags/1.2/sp.php#L37 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/trunk/options.php#L94 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/trunk/sp.php#L37 plugins.trac.wordpress.org
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a4c0b14a-d039-4008-a433-ab3605e2612c?source=cve www.wordfence.com