CVE-2023-33969

Name: CVE-2023-33969
Creator: NVD / NIST
Published: 2023-06-05T20:15:09.867+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.51%

Last modified Jun 17, 2026

CVE-2023-33969 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Kanboard is open source project management software that focuses on the Kanban methodology. A stored Cross site scripting (XSS) allows an attacker to execute arbitrary Javascript and any user who views the task containing the malicious code will be exposed to the XSS attack. EPSS estimates a 0.51% chance of exploitation in the next 30 days.

Description

Kanboard is open source project management software that focuses on the Kanban methodology. A stored Cross site scripting (XSS) allows an attacker to execute arbitrary Javascript and any user who views the task containing the malicious code will be exposed to the XSS attack. Note: The default CSP header configuration blocks this javascript attack. This issue has been addressed in version 1.2.30. Users are advised to upgrade. Users unable to upgrade should ensure that they have a restrictive CSP header config.

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

0.51%

39.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Kanboard	Kanboard	< 1.2.30

References

https://github.com/kanboard/kanboard/commit/05f1d23d821152cd61536d3b09e522c0f7573e3cPatch
https://github.com/kanboard/kanboard/security/advisories/GHSA-8qvf-9847-gpc9Exploit, Third Party Advisory
https://github.com/kanboard/kanboard/commit/05f1d23d821152cd61536d3b09e522c0f7573e3cPatch
https://github.com/kanboard/kanboard/security/advisories/GHSA-8qvf-9847-gpc9Exploit, Third Party Advisory

Timeline

Published: Jun 5, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-33969?

How severe is CVE-2023-33969?

CVE-2023-33969 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.

How do I fix CVE-2023-33969?

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-2023-33969?

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

Scan your code now

Source: NVD / NIST