CVE-2017-8102: s9y Serendipity

Medium severity, CVSS 5.4. EPSS: 0.9% chance of exploitation in the next 30 days.

Stored XSS in Serendipity v2.1-rc1 allows an attacker to steal an admin's cookie and other information by composing a new entry as an editor user. This is related to lack of the serendipity_event_xsstrust plugin and a set_config error in that plugin.

Affected products

• s9y Serendipity: version 2.1 only

Published 2017-04-24. Last modified 2026-06-17.