CVE-2017-16956: Symphony Project Symphony

Medium severity, CVSS 6.1. EPSS: 0.7% chance of exploitation in the next 30 days.

b3log Symphony (aka Sym) 2.2.0 allows an XSS attack by sending a private letter with a certain /article URI, and a second private letter with a modified title.

Affected products

• Symphony Project Symphony: version 2.2.0 only

Published 2017-11-27. Last modified 2026-06-17.