CVE-2021-31862

Name: CVE-2021-31862
Creator: NVD / NIST
Published: 2021-10-29T11:15:08.477+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 3.92%

Last modified Jun 17, 2026

CVE-2021-31862 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. SysAid 20.4.74 allows XSS via the KeepAlive.jsp stamp parameter without any authentication.. EPSS estimates a 3.92% chance of exploitation in the next 30 days.

Description

SysAid 20.4.74 allows XSS via the KeepAlive.jsp stamp parameter without any authentication.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

3.92%

89.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Sysaid	Sysaid	20.4.74

References

https://github.com/RobertDra/CVE-2021-31862/blob/main/README.mdExploit, Third Party Advisory
https://www.sysaid.com/product/on-premise/latest-releaseRelease Notes, Vendor Advisory
https://github.com/RobertDra/CVE-2021-31862/blob/main/README.mdExploit, Third Party Advisory
https://www.sysaid.com/product/on-premise/latest-releaseRelease Notes, Vendor Advisory

Timeline

Published: Oct 29, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-31862?

SysAid 20.4.74 allows XSS via the KeepAlive.jsp stamp parameter without any authentication.

How severe is CVE-2021-31862?

CVE-2021-31862 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 3.92% probability of exploitation in the next 30 days.

How do I fix CVE-2021-31862?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-31862?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST