Authenticated command execution via unquoted branch name
Published Aug 5, 2026 · Updated Aug 5, 2026
OS command injection in HashBrown CMS 1.4.6 and earlier allows remote authenticated users to execute commands through a Git branch name. GitDeployer.pullRepo() interpolates the configured branch directly into an unquoted git checkout shell command, while validation rejects only single quotes. Access to project Git deployer settings is required; a malicious branch then runs commands under the CMS process during later deployer operations.
Summary
What happened
OS command injection in HashBrown CMS 1.4.6 and earlier allows remote authenticated users to execute commands through a Git branch name. GitDeployer.pullRepo() interpolates the configured branch directly into an unquoted git checkout shell command, while validation rejects only single quotes. Access to project Git deployer settings is required; a malicious branch then runs commands under the CMS process during later deployer operations.
The record
- CVE
- CVE-2026-70375
- Published
- Aug 5, 2026
- Updated
- Aug 5, 2026
- Vendor
- HashBrown CMS
- Product
- HashBrown CMS
- Classifications
- CWE-78, T1059
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 5, 2026CVE publishedPublication date reported by the CVE source.
- Aug 5, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <=1.4.6
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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