Atlassian SAML Single Sign On vulnerabilities

2 CVEs affecting Atlassian SAML Single Sign On, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2021-37843, published 2021-08-02.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2021-37843, published 2021-08-02. Critical severity, CVSS 9.8. EPSS: 1.5% chance of exploitation in the next 30 days. The resolution SAML SSO apps for Atlassian products allow a remote attacker to login to a user account when only the username is known (i.e., no other authentication is provided). The fixed versions…
• CVE-2019-13347, published 2019-12-13. High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days. An issue was discovered in the SAML Single Sign On (SSO) plugin for several Atlassian products affecting versions 3.1.0 through 3.2.2 for Jira and Confluence, versions 2.4.0 through 3.0.3 for…