CISA KEV · Known exploitedHigh

CVE-2022-36804

Atlassian Bitbucket Server and Data Center

Multiple API endpoints in Atlassian Bitbucket Server and Data Center 7.0.0 before version 7.6.17, from version 7.7.0 before version 7.17.10, from version 7.18.0 before version 7.21.4, from version 8.0.0 before version 8.0.3, from version 8.1.0 before version 8.1.3, and from version 8.2.0 before version 8.2.2, and from version 8.3.0 before 8.3.1 allows remote attackers with read permissions to a public or private Bitbucket repository to execute arbitrary code by sending a malicious HTTP request. This vulnerability was reported via our Bug Bounty Program by TheGrandPew.

CVSS: 8.8
EPSS: 99.1%
CISA KEV: Listed
Published: 2022.08.25

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability99.1%

Technical severityCVSS 8.8

Vulnerability overview

Affected product and versions

Product: Atlassian Bitbucket Server and Data Center
Affected versions: 7.0.0, unspecified, 7.7.0, 7.18.0, 8.0.0, 8.1.0, 8.2.0, 8.3.0, >= 7.0.0 < 7.6.17, >= 7.7.0 < 7.17.10, >= 7.18.0 < 7.21.4, >= 8.0.0 < 8.0.3, >= 8.1.0 < 8.1.3, >= 8.2.0 < 8.2.2
Fixed versions: 7.6.17, 7.17.10, 7.21.4, 8.0.3, 8.1.3, 8.2.2

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2022.10.21

1
Identify
Confirm that Atlassian Bitbucket Server and Data Center and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-158, CWE-78, CWE-88
KEV added: 2022.09.30
Ransomware use: 미확인