CVE-2023-52240

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-12-29 · updated 2026-06-17
Weakness: CWE-79

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.)

Affected products

Kantega-Sso Kantega Saml Sso Oidc Kerberos Single Sign-On: from 4.4.2 before 4.14.9; from 5.0.0 before 5.11.5; from 6.0.0 before 6.20.0 — fixed in 4.14.9, 5.11.5, 6.20.0

How to fix

Upgrade to a fixed version: Kantega-Sso Kantega Saml Sso Oidc Kerberos Single Sign-On 4.14.9, 5.11.5, 6.20.0. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2023-52240 or the next vulnerability affects your stack