CVE-2021-42841

MediumCVSS 6.1/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/210416Third Party Advisory, VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/210416Third Party Advisory, VDB Entry

Timeline

Published: Jan 6, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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