CVE-2026-22035

πŸ”΄ HIGH

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 ExternalC...

Published
Jan 08, 2026
Last Modified
Jan 08, 2026
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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.

CVSS Scores

CVSS 3.1 7.7
7.7
HIGH
CVSS 2.0 7.7

Additional Information

Source
security-advisories@github.com
State
Awaiting analysis

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