CVE-2023-39521

Name: CVE-2023-39521
Creator: NVD / NIST
Published: 2023-08-24T23:15:09+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.47%

Last modified Jun 17, 2026

CVE-2023-39521 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Tuleap is an open source suite to improve management of software developments and collaboration. In Tuleap Community Edition prior to version 14.11.99.28 and Tuleap Enterprise Edition prior to versions 14.10-6 and 14.11-3, content displayed in the "card fields" (visible in the kanban and PV2 apps) is not properly escaped. EPSS estimates a 0.47% chance of exploitation in the next 30 days.

Description

Tuleap is an open source suite to improve management of software developments and collaboration. In Tuleap Community Edition prior to version 14.11.99.28 and Tuleap Enterprise Edition prior to versions 14.10-6 and 14.11-3, content displayed in the "card fields" (visible in the kanban and PV2 apps) is not properly escaped. An agile dashboard administrator deleting a kanban with a malicious label can be forced to execute uncontrolled code. Tuleap Community Edition 14.11.99.28, Tuleap Enterprise Edition 14.10-6, and Tuleap Enterprise Edition 14.11-3 contain a fix for this issue.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.47%

36.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Enalean	Tuleap	< 14.10-7
Enalean	Tuleap	< 14.11.99.82
Enalean	Tuleap	>= 14.11, < 14.11-5

References

https://github.com/Enalean/tuleap/commit/93d10654b1d95c5bf500204666310418b01b8a8dPatch
https://github.com/Enalean/tuleap/security/advisories/GHSA-h9xc-w7qq-vpfcPatch, Vendor Advisory
https://tuleap.net/plugins/git/tuleap/tuleap/stable?a=commit&h=93d10654b1d95c5bf500204666310418b01b8a8dPatch
https://tuleap.net/plugins/tracker/?aid=33656Exploit, Issue Tracking, Patch, Vendor Advisory
https://github.com/Enalean/tuleap/commit/93d10654b1d95c5bf500204666310418b01b8a8dPatch
https://github.com/Enalean/tuleap/security/advisories/GHSA-h9xc-w7qq-vpfcPatch, Vendor Advisory
https://tuleap.net/plugins/git/tuleap/tuleap/stable?a=commit&h=93d10654b1d95c5bf500204666310418b01b8a8dPatch
https://tuleap.net/plugins/tracker/?aid=33656Exploit, Issue Tracking, Patch, Vendor Advisory

Timeline

Published: Aug 24, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-39521?

How severe is CVE-2023-39521?

CVE-2023-39521 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.

How do I fix CVE-2023-39521?

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-2023-39521?

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

Scan your code now

Source: NVD / NIST