CVE-2021-35488

Name: CVE-2021-35488
Creator: NVD / NIST
Published: 2021-11-09T23:15:08.787+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 2.63%

Last modified Jun 17, 2026

CVE-2021-35488 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Thruk 2.40-2 allows /thruk/#cgi-bin/status.cgi?style=combined&title={TITLE] Reflected XSS via the host or title parameter. An attacker could inject arbitrary JavaScript into status.cgi. EPSS estimates a 2.63% chance of exploitation in the next 30 days.

Description

Thruk 2.40-2 allows /thruk/#cgi-bin/status.cgi?style=combined&title={TITLE] Reflected XSS via the host or title parameter. An attacker could inject arbitrary JavaScript into status.cgi. The payload would be triggered every time an authenticated user browses the page containing it.

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

2.63%

83.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Thruk	Thruk	2.40-2

References

https://www.gruppotim.it/redteamExploit, Third Party Advisory
https://www.thruk.org/changelog.htmlRelease Notes, Vendor Advisory
https://www.gruppotim.it/redteamExploit, Third Party Advisory
https://www.thruk.org/changelog.htmlRelease Notes, Vendor Advisory

Timeline

Published: Nov 9, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-35488?

How severe is CVE-2021-35488?

CVE-2021-35488 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 2.63% probability of exploitation in the next 30 days.

How do I fix CVE-2021-35488?

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-2021-35488?

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

Scan your code now

Source: NVD / NIST