AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2021-37633

HIGH · CVSS 7.4 EPSS 0.76% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-08-09 · 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-2021-37633
Severity
HIGH
CVSS
7.4
EPSS
0.76%

Original NVD Description

Discourse is an open source discussion platform. In versions prior to 2.7.8 rendering of d-popover tooltips can be susceptible to XSS attacks. This vulnerability only affects sites which have modified or disabled Discourse's default Content Security Policy. This issue is patched in the latest `stable` 2.7.8 version of Discourse. As a workaround users may ensure that the Content Security Policy is enabled, and has not been modified in a way which would make it more vulnerable to XSS attacks.