JetBrains Upsource vulnerabilities

5 CVEs affecting JetBrains Upsource, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2021-30482, published 2021-05-11.

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

• CVE-2019-12157, published 2019-10-02. Critical severity, CVSS 9.8. EPSS: 1.8% chance of exploitation in the next 30 days. In JetBrains UpSource versions before 2018.2 build 1293, there is credential disclosure via RPC commands.
• CVE-2019-19704, published 2020-08-08. High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days. In JetBrains Upsource before 2020.1, information disclosure is possible because of an incorrect user matching algorithm.
• CVE-2021-30482, published 2021-05-11. High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days. In JetBrains UpSource before 2020.1.1883, application passwords were not revoked correctly
• CVE-2019-12156, published 2019-10-02. Medium severity, CVSS 5.3. EPSS: 0.9% chance of exploitation in the next 30 days. Server metadata could be exposed because one of the error messages reflected the whole response back to the client in JetBrains TeamCity versions before 2018.2.5 and UpSource versions before 2018.2…
• CVE-2019-14961, published 2019-10-01. Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days. JetBrains Upsource before 2019.1.1412 was not properly escaping HTML tags in a code block comments, leading to XSS.