CVE-2023-33961: Leantime is a lean open source project management system. Starting in version 2.3.21, an authenticated user with commenting privileges can inject mali...

Description

Leantime is a lean open source project management system. Starting in version 2.3.21, an authenticated user with commenting privileges can inject malicious Javascript into a comment. Once the malicious comment is loaded in the browser by a user, the malicious Javascript code executes. As of time of publication, a patch does not exist.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.39%

31.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Leantime	Leantime	>= 2.3.21

References

https://github.com/Leantime/leantime/security/advisories/GHSA-359m-fp6q-65r7Vendor Advisory
https://github.com/Leantime/leantime/security/advisories/GHSA-359m-fp6q-65r7Vendor Advisory

Timeline

Published: May 30, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-33961?

Leantime is a lean open source project management system. Starting in version 2.3.21, an authenticated user with commenting privileges can inject malicious Javascript into a comment. Once the malicious comment is loaded in the browser by a user, the malicious Javascript code executes. As of time of publication, a patch does not exist.

How severe is CVE-2023-33961?

CVE-2023-33961 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2023-33961?

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.

How Strix Helps

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