CVE-2023-52240: The Kantega SAML SSO OIDC Kerberos Single Sign-on apps before 6.20.0 for Atlassian products allow XSS if SAML POST Binding is enabled. This affects 4....

Description

The Kantega SAML SSO OIDC Kerberos Single Sign-on apps before 6.20.0 for Atlassian products allow XSS if SAML POST Binding is enabled. This affects 4.4.2 through 4.14.8 before 4.14.9, 5.0.0 through 5.11.4 before 5.11.5, and 6.0.0 through 6.19.0 before 6.20.0. The full product names are Kantega SAML SSO OIDC Kerberos Single Sign-on for Jira Data Center & Server (Kantega SSO Enterprise), Kantega SAML SSO OIDC Kerberos Single Sign-on for Confluence Data Center & Server (Kantega SSO Enterprise), Kantega SAML SSO OIDC Kerberos Single Sign-on for Bitbucket Data Center & Server (Kantega SSO Enterprise), Kantega SAML SSO OIDC Kerberos Single Sign-on for Bamboo Data Center & Server (Kantega SSO Enterprise), and Kantega SAML SSO OIDC Kerberos Single Sign-on for FeCru Server (Kantega SSO Enterprise). (Here, FeCru refers to the Atlassian Fisheye and Crucible products running together.)

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

0.50%

38.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Kantega-Sso	Kantega Saml Sso Oidc Kerberos Single Sign-On	>= 4.4.2, < 4.14.9
Kantega-Sso	Kantega Saml Sso Oidc Kerberos Single Sign-On	>= 5.0.0, < 5.11.5
Kantega-Sso	Kantega Saml Sso Oidc Kerberos Single Sign-On	>= 6.0.0, < 6.20.0

References

Timeline

Published: Dec 29, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-52240?

The Kantega SAML SSO OIDC Kerberos Single Sign-on apps before 6.20.0 for Atlassian products allow XSS if SAML POST Binding is enabled. This affects 4.4.2 through 4.14.8 before 4.14.9, 5.0.0 through 5.11.4 before 5.11.5, and 6.0.0 through 6.19.0 before 6.20.0. The full product names are Kantega SAML SSO OIDC Kerberos Single Sign-on for Jira Data Center & Server (Kantega SSO Enterprise), Kantega SAML SSO OIDC Kerberos Single Sign-on for Confluence Data Center & Server (Kantega SSO Enterprise), Kantega SAML SSO OIDC Kerberos Single Sign-on for Bitbucket Data Center & Server (Kantega SSO Enterprise), Kantega SAML SSO OIDC Kerberos Single Sign-on for Bamboo Data Center & Server (Kantega SSO Enterprise), and Kantega SAML SSO OIDC Kerberos Single Sign-on for FeCru Server (Kantega SSO Enterprise). (Here, FeCru refers to the Atlassian Fisheye and Crucible products running together.)

How severe is CVE-2023-52240?

CVE-2023-52240 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2023-52240?

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.