AUGUST 4, 2026
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Case File

CVE-2021-42567

MEDIUM · CVSS 6.1 EPSS 8.06% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-07 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

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

GitHub PoC Links
github.com ↗

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

CVE
CVE-2021-42567
Severity
MEDIUM
CVSS
6.1
EPSS
8.06%

Original NVD Description

Apereo CAS through 6.4.1 allows XSS via POST requests sent to the REST API endpoints.