Bitbucket
CVE-2022-43781
CRITICAL
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Command injection prevention
MITRE ATT&CK
1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. |
| Exploit ScenarioDerived | A remote attacker could inject arbitrary commands into system command execution by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
There is a command injection vulnerability using environment variables in Bitbucket Server and Data Center. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Use parameterized APIs, avoid shell execution, validate input with strict allowlists.
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Command Injection (CWE-77), which allows attackers to inject arbitrary commands into system command execution. There is a command injection vulnerability using environment variables in Bitbucket Server and Data Center. An attacker with permission to control their username can exploit this issue to execute arbitrary code on the system. This vulnerability can be unauthenticated if the Bitbucket Server and Data Center instance has enabled “Allow public signup”. Affected products include: Atlassian Bitbucket.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
There is a command injection vulnerability using environment variables in Bitbucket Server and Data Center. An attacker with permission to control their username can exploit this issue to execute arbitrary code on the system. This vulnerability can be unauthenticated if the Bitbucket Server and Data Center instance has enabled “Allow public signup”.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
OS command injection occurs when an application passes unsanitized user input directly into system shell commands.
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
Affected Products (CPE)NVD
Multiple API endpoints in Atlassian Bitbucket Server and Data Center 7.0.0 before version 7.6.17, from version 7.7.0 bef
In browser editing in Atlassian Bitbucket Server from version 4.13.0 before 5.4.8 (the fixed version for 4.13.0 through
A vulnerability in multiple Atlassian products allows a remote, unauthenticated attacker to bypass Servlet Filters used
The commit diff rest endpoint in Bitbucket Server and Data Center before 5.16.10 (the fixed version for 5.16.x ), from 6
Dokploy instances running versions prior to 0.29.13 disclose stored Git provider secrets - GitHub App private keys, OAut
Atlassian Bitbucket Data Center licensed instances starting with version 5.13.0 before 5.13.6 (the fixed version for 5.1
A vulnerability in multiple Atlassian products allows a remote, unauthenticated attacker to cause additional Servlet Fil
Atlassian Bitbucket Server from version 4.9.0 before version 7.2.4 allows remote attackers to intercept unencrypted repo
The redirect_stderr function in xnbd_common.c in xnbd-server and xndb-wrapper in xNBD 0.1.0 allow local users to overwri
Atlassian Bitbucket Server before 4.7.1 allows remote attackers to read the first line of an arbitrary file via a direct
Webhooks in Atlassian Bitbucket Server from version 5.4.0 before version 7.3.1 allow remote attackers to access the cont
The Atlassian Troubleshooting and Support Tools plugin prior to version 1.17.2 allows an unprivileged user to initiate p
GitHub PoC
Exploit-DB