High 7.8Published Jan 7, 2026

CVE-2026-22035Greenshot Vulnerable to OS Command Injection via ExternalCommand Plugin

Updated under an hour ago (Oct 27, 2026, 2:20 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for greenshot

Exploited in the last 30 days

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: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-78
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Feb 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

greenshot greenshot greenshot:greenshot (from the name)	before 1.3.311	CNA record
getgreenshot greenshot getgreenshot:greenshot	before 1.3.311	NVD

References

References

https://github.com/greenshot/greenshot/security/advisories/GHSA-7hvw-q8q5-gpmj	x-refsource-confirm, exploit, vendor-advisory
https://github.com/greenshot/greenshot/commit/5dedd5c9f0a9896fa0af1d4980d875a48bf432cb	x-refsource-misc, patch
https://github.com/greenshot/greenshot/releases/tag/v1.3.311	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.