CVE-2025-5807

MEDIUM 6.1

Gwolle Guestbook <= 4.9.2 - Unauthenticated Stored Cross-Site Scripting via `gwolle_gb_content` Parameter

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

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 it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CWE	CWE-79
Vendor	mpol
Product	gwolle guestbook
Published	Jul 10, 2025
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

mpol / Gwolle Guestbook

0 ≤ 4.9.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/956f86c5-05af-41c3-a779-5b25f62122dd?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3316455/

Credits

D.Sim