CVE-2021-21407

Name: CVE-2021-21407
Creator: NVD / NIST
Published: 2021-07-21T16:15:08.483+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2021-21407 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Combodo iTop is an open source, web based IT Service Management tool. Prior to version 2.7.4, the CSRF token validation can be bypassed through iTop portal via a tricky browser procedure. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

Description

Combodo iTop is an open source, web based IT Service Management tool. Prior to version 2.7.4, the CSRF token validation can be bypassed through iTop portal via a tricky browser procedure. The vulnerability is patched in version 2.7.4 and 3.0.0.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.46%

36.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Combodo	Itop	< 2.7.4

References

https://github.com/Combodo/iTop/security/advisories/GHSA-9wq8-4qm9-3j6fThird Party Advisory
https://github.com/Combodo/iTop/security/advisories/GHSA-9wq8-4qm9-3j6fThird Party Advisory

Timeline

Published: Jul 21, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-21407?

How severe is CVE-2021-21407?

CVE-2021-21407 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2021-21407?

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-2021-21407?

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

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Source: NVD / NIST