CVE-2026-109318 Details
Description
Grav Git Sync 1.0.2 through 3.4.12 contains a command injection vulnerability that allows authenticated content editors to execute OS commands by injecting shell substitutions into profile fields. When the gravuser or gravfull author mode is enabled, attackers can set a malicious username, full name, or email that reaches PHP exec() via git commit --author, running commands as the web-server account.
A command injection vulnerability has been identified in the Grav Git Sync plugin, affecting versions 1.0.2 through 3.4.12. This vulnerability allows authenticated content editors to execute operating system commands by injecting shell substitutions into profile fields. When the 'gravuser' or 'gravfull' author mode is activated, attackers can manipulate the username, full name, or email to execute commands via 'git commit --author', running them as the web server account.
Users are advised to upgrade to Grav Git Sync version 3.4.13, which addresses the vulnerability by properly escaping the author argument before executing the command.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 12, 2026CISA-ADP
Assessed Oct 13, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Grav Git Sync | >= 1.0.2, <= 3.4.12 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 13, 2026 | CVE Modified | CISA-ADP |
| Oct 12, 2026 | New CVE Received | [email protected] |