CVE-2026-22035
Greenshot is an open source Windows screenshot utility. Versions 1.3.310 and below arvulnerable to OS Command Injection through unsanitized filename processing. The FormatArguments method in ExternalCommandDestination.cs:269 uses string.Format() to insert user-controlled filenames directly into shell commands without sanitization, allowing attackers to execute arbitrary commands by crafting malicious filenames containing shell metacharacters. This issue is fixed in version 1.3.311.
Package Versions Affected
Automatically patch vulnerabilities without upgrading
CVSS Version



Related Resources
References
https://github.com/greenshot/greenshot/releases/tag/v1.3.311, https://github.com/greenshot/greenshot/security/advisories/GHSA-7hvw-q8q5-gpmj, https://github.com/greenshot/greenshot/commit/5dedd5c9f0a9896fa0af1d4980d875a48bf432cb
