CVE-2026-70375
HashBrown CMS: OS Command Injection via Git Deployer Branch Field
Description
HashBrown CMS through 1.4.6 contains an OS Command Injection vulnerability (CWE-78) in the Git deployer component. GitDeployer.pullRepo() in src/Server/Entity/Deployer/GitDeployer.js executes AppService.exec(`git checkout ${this.branch || 'master'}`), interpolating the configured branch value directly into a shell command with no escaping. GitDeployer.validate() only rejects a single-quote character in the repo, branch, username, and password fields; shell metacharacters such as ';', '&&', '|', backticks, and '$()' are not filtered. A user able to configure a project's Git deployer settings can set a malicious branch value (e.g. 'master;<command>#') that executes automatically on every subsequent deployer operation (media upload, content save, etc.), since pullRepo() is invoked unconditionally at the start of each such operation. This is related to CVE-2020-6948, which addressed single-quote escaping of the repo, username, and password fields in the same file's git clone invocation; the branch field used in the unquoted git checkout command was not covered by that fix and remains injectable.
INFO
Published Date :
Aug. 5, 2026, 7:16 a.m.
Last Modified :
Aug. 5, 2026, 7:16 a.m.
Remotely Exploit :
No
Source :
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
Affected Products
The following products are affected by CVE-2026-70375
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Upgrade HashBrown CMS to the latest stable version.
- Review and sanitize branch configurations.
- Validate all user-supplied inputs for Git deployer.
- Avoid direct shell command interpolation.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-70375.
| URL | Resource |
|---|---|
| https://cve.turansec.uz/advisories/TRN-B571F773 | |
| https://github.com/HashBrownCMS/hashbrown-cms |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-70375 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-70375
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-70375 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-70375 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
Aug. 05, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/HashBrownCMS/hashbrown-cms', 'vendor': 'HashBrownCMS', 'product': 'hashbrown-cms', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '1.4.6'}], 'programFiles': ['src/Server/Entity/Deployer/GitDeployer.js'], 'defaultStatus': 'unknown'}] Added Description HashBrown CMS through 1.4.6 contains an OS Command Injection vulnerability (CWE-78) in the Git deployer component. GitDeployer.pullRepo() in src/Server/Entity/Deployer/GitDeployer.js executes AppService.exec(`git checkout ${this.branch || 'master'}`), interpolating the configured branch value directly into a shell command with no escaping. GitDeployer.validate() only rejects a single-quote character in the repo, branch, username, and password fields; shell metacharacters such as ';', '&&', '|', backticks, and '$()' are not filtered. A user able to configure a project's Git deployer settings can set a malicious branch value (e.g. 'master;<command>#') that executes automatically on every subsequent deployer operation (media upload, content save, etc.), since pullRepo() is invoked unconditionally at the start of each such operation. This is related to CVE-2020-6948, which addressed single-quote escaping of the repo, username, and password fields in the same file's git clone invocation; the branch field used in the unquoted git checkout command was not covered by that fix and remains injectable. Added CWE CWE-78 Added Reference https://cve.turansec.uz/advisories/TRN-B571F773 Added Reference https://github.com/HashBrownCMS/hashbrown-cms