What is CVE-2021-42841?

CVE-2021-42841 is a medium-severity vulnerability in Practo Insta Hms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-01-06.

How severe is CVE-2021-42841?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Practo Insta Hms

CVE-2021-42841

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.009 (54.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Practo Insta_hms
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-42841?: CVE-2021-42841 is a medium-severity vulnerability in Practo Insta Hms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-01-06.
How severe is CVE-2021-42841?: Medium severity. CVSS v3 base score is 6.1 out of 10.