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Case File

CVE-2021-42841

MEDIUM · CVSS 6.1 EPSS 0.85% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-01-06 · 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.

Detected Signals
exploit

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

CVE
CVE-2021-42841
Severity
MEDIUM
CVSS
6.1
EPSS
0.85%

Original NVD Description

Insta HMS before 12.4.10 is vulnerable to XSS because of improper validation of user-supplied input by multiple scripts. A remote attacker could exploit this vulnerability via a crafted URL to execute script in a victim's Web browser within the security context of the hosting Web site, once the URL is clicked. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.