The git repository tag rest resource in Atlassian Bitbucket Server from version 3.7.0 before 4.14.11 (the fixed version for 4.14.x), from version 5.0.0 before 5.0.9 (the fixed version for 5.0.x), from version 5.1.0 before 5.1.8 (the fixed version for 5.1.x), from version 5.2.0 before 5.2.6 (the fixed version for 5.2.x), from version 5.3.0 before 5.3.4 (the fixed version for 5.3.x), from version 5.4.0 before 5.4.2 (the fixed version for 5.4.x), from version 5.5.0 before 5.5.1 (the fixed version for 5.5.x) and before 5.6.0 allows remote attackers to read arbitrary files via a path traversal vulnerability through the name of a git tag.

Webhooks in Atlassian Bitbucket Server from version 5.4.0 before version 7.3.1 allow remote attackers to access the content of internal network resources via a Server-Side Request Forgery (SSRF) vulnerability.

Various plugin servlet resources in Atlassian Bitbucket Server before version 5.3.7 (the fixed version for 5.3.x), from version 5.4.0 before 5.4.6 (the fixed version for 5.4.x), from version 5.5.0 before 5.5.6 (the fixed version for 5.5.x), from version 5.6.0 before 5.6.3 (the fixed version for 5.6.x), from version 5.7.0 before 5.7.1 (the fixed version for 5.7.x) and before 5.8.0 allow remote attackers to conduct clickjacking attacks via framing various resources that lacked clickjacking protection.