XSS in Mpol Gwolle Guestbook

CVE-2025-5807

The Gwolle Guestbook plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘gwolle_gb_content’ parameter in all versions up to, and including, 4.9.2 due to insufficient input sanitization and output escaping. This makes…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (10.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-5807?
CVE-2025-5807 is a medium-severity vulnerability in Mpol Gwolle Guestbook, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-07-10.
How severe is CVE-2025-5807?
Medium severity. CVSS v3 base score is 6.1 out of 10.