AUGUST 4, 2026
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Case File

CVE-2021-21275

MEDIUM · CVSS 5.3 EPSS 0.72% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-01-25 · 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 ↗ github.com ↗

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

CVE
CVE-2021-21275
Severity
MEDIUM
CVSS
5.3
EPSS
0.72%

Original NVD Description

The MediaWiki "Report" extension has a Cross-Site Request Forgery (CSRF) vulnerability. Before fixed version, there was no protection against CSRF checks on Special:Report, so requests to report a revision could be forged. The problem has been fixed in commit f828dc6 by making use of MediaWiki edit tokens.