CVE-2017-16821

PoC —

CVSS 3.1

5.4 medium

EPSS

<1%p40

Published

Nov 15, 2017 (Nov 15, 2017)

Modified

Jun 17, 2026

Description

b3log Symphony (aka Sym) 2.2.0 has XSS in processor/AdminProcessor.java in the admin console, as demonstrated by a crafted X-Forwarded-For HTTP header that is mishandled during display of a client IP address in /admin/user/userid.

Vendors: b3log
Products: symphony
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.5%)

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