AUGUST 4, 2026
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Case File

CVE-2021-27564

MEDIUM · CVSS 5.4 EPSS 0.52% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-02-22 · 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-2021-27564
Severity
MEDIUM
CVSS
5.4
EPSS
0.52%

Original NVD Description

A stored XSS issue exists in Appspace 6.2.4. After a user is authenticated and enters an XSS payload under the groups section of the network tab, it is stored as the group name. Whenever another member visits that group, this payload executes.