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Case File

CVE-2016-5303

MEDIUM · CVSS 6.1 EPSS 1.51% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2016-12-20 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

Exhibit — Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2016-5303
Severity
MEDIUM
CVSS
6.1
EPSS
1.51%

Original Filing — NVD Description

Cross-site scripting (XSS) vulnerability in the Horde Text Filter API in Horde Groupware and Horde Groupware Webmail Edition before 5.2.16 allows remote attackers to inject arbitrary web script or HTML via crafted data:text/html content in a form (1) action or (2) xlink attribute.