XSS in Fooplugins Foobox
CVE-2025-5537
The Lightbox & Modal Popup WordPress Plugin – FooBox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via image alternative texts in all versions up to, and including, 2.7.34 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (7.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/b5fd2163-b8ef-4dd1-a12b-cd918… (Third Party Advisory)
- plugins.trac.wordpress.org/changeset (Patch)
Frequently asked questions
- What is CVE-2025-5537?
- CVE-2025-5537 is a medium-severity vulnerability in Fooplugins Foobox, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-07-08.
- How severe is CVE-2025-5537?
- Medium severity. CVSS v3 base score is 6.4 out of 10.