CVE-2021-42841: Practo Insta Hms

Medium severity, CVSS 6.1. EPSS: 0.9% chance of exploitation in the next 30 days.

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.

Affected products

• Practo Insta Hms: before 12.4.10 (fixed in 12.4.10)

Published 2022-01-06. Last modified 2026-06-17.