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CVE-2021-42841

MEDIUM
6.1
CVSS Score
Published: January 6, 2022 at 08:04 PM UTC
Updated: June 17, 2026 at 04:10 AM UTC
1 product affected across 1 vendorInsta Hms

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.9%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Insta Hms· Practo
95%
v < 12.4.10
Affected range stops below 12.4.10, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
https://exchange.xforce.ibmcloud.com/vulnerabilities/210416

CVSS

6.1MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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