CVE-2004-2157: s9y Serendipity

Medium severity, CVSS 4.3. EPSS: 2% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in Comment.php in Serendipity 0.7 beta1, and possibly other versions before 0.7-beta3, allows remote attackers to inject arbitrary HTML and PHP code via the (1) email or (2) username field.

Affected products

• s9y Serendipity: version 0.7_beta1 only

Published 2004-12-31. Last modified 2026-06-16.