VULNERABILITY INTELLIGENCE

CVE-2021-42841

CVSS score6.1 MEDIUM
EPSS probability0.88%
CISA KEVNot currently listed
Published2022-01-06
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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.

Weakness classification

  • nvd@nist.gov: CWE-79

Primary references