In JetBrains YouTrack Mobile before 2021.2, access token protection on iOS is incomplete.

In JetBrains YouTrack Mobile before 2021.2, the client-side cache on iOS could contain sensitive information.

JetBrains YouTrack before 2021.3.24402 is vulnerable to stored XSS.

JetBrains YouTrack before 2021.3.23639 is vulnerable to Host header injection.

In JetBrains YouTrack before 2021.3.21051, stored XSS is possible.

In JetBrains YouTrack before 2021.3.21051, a user could see boards without having corresponding permissions.

In JetBrains YouTrack before 2021.2.16363, an insecure PRNG was used.

In JetBrains YouTrack before 2021.2.17925, stored XSS was possible.

In JetBrains YouTrack before 2021.2.16363, system user passwords were hashed with SHA-256.

In JetBrains YouTrack before 2021.2.16363, time-unsafe comparisons were used.

In JetBrains YouTrack before 2021.1.11111, sandboxing in workflows was insufficient.

In JetBrains YouTrack before 2020.6.8801, information disclosure in an issue preview was possible.

In JetBrains YouTrack before 2021.1.9819, a pull request's title was sanitized insufficiently, leading to XSS.

In JetBrains YouTrack before 2020.6.6600, access control during the exporting of issues was implemented improperly.

In JetBrains YouTrack before 2020.6.6441, stored XSS was possible via an issue attachment.

In JetBrains YouTrack before 2020.6.1099, project information could be potentially disclosed.

In JetBrains YouTrack before 2020.5.3123, server-side template injection (SSTI) was possible, which could lead to code execution.

In JetBrains YouTrack before 2020.4.6808, the YouTrack administrator wasn't able to access attachments.

In JetBrains YouTrack before 2020.4.4701, permissions for attachments actions were checked improperly.

In JetBrains YouTrack before 2020.6.1767, an issue's existence could be disclosed via YouTrack command execution.