Vulnerability Description
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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Getgreenshot | Greenshot | < 1.3.311 |
Related Weaknesses (CWE)
References
- https://github.com/greenshot/greenshot/commit/5dedd5c9f0a9896fa0af1d4980d875a48bPatch
- https://github.com/greenshot/greenshot/releases/tag/v1.3.311Release Notes
- https://github.com/greenshot/greenshot/security/advisories/GHSA-7hvw-q8q5-gpmjVendor AdvisoryExploit
- https://github.com/greenshot/greenshot/security/advisories/GHSA-7hvw-q8q5-gpmjVendor AdvisoryExploit
FAQ
What is CVE-2026-22035?
CVE-2026-22035 is a vulnerability with a CVSS score of 7.7 (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...
How severe is CVE-2026-22035?
CVE-2026-22035 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-22035?
Check the references section above for vendor advisories and patch information. Affected products include: Getgreenshot Greenshot.