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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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f8b41831bb50db940b2aa22258c8e99c3c4f1acf5d447792d7441bce9e87c5cf
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"greenshot","vendor":"greenshot","versions":[{"status":"affected","version":"< 1.3.311"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:084c8c2d084c8827cf156d9b6649324f83441f36995563c41aceb460eebbf477 · sha256:ffa9db15fbc3f628… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:084c8c2d084c8827cf156d9b6649324f83441f36995563c41aceb460eebbf477 · sha256:ffa9db15fbc3f628… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-78","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:084c8c2d084c8827cf156d9b6649324f83441f36995563c41aceb460eebbf477 · sha256:ffa9db15fbc3f628… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/greenshot/greenshot/commit/5dedd5c9f0a9896fa0af1d4980d875a48bf432cb","tags":["x_refsource_MISC"],"url":"https://github.com/greenshot/greenshot/commit/5dedd5c9f0a9896fa0af1d4980d875a48bf432cb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:084c8c2d084c8827cf156d9b6649324f83441f36995563c41aceb460eebbf477 · sha256:ffa9db15fbc3f628… · /containers/cna/references/1
{"name":"https://github.com/greenshot/greenshot/releases/tag/v1.3.311","tags":["x_refsource_MISC"],"url":"https://github.com/greenshot/greenshot/releases/tag/v1.3.311"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:084c8c2d084c8827cf156d9b6649324f83441f36995563c41aceb460eebbf477 · sha256:ffa9db15fbc3f628… · /containers/cna/references/2
{"name":"https://github.com/greenshot/greenshot/security/advisories/GHSA-7hvw-q8q5-gpmj","tags":["x_refsource_CONFIRM"],"url":"https://github.com/greenshot/greenshot/security/advisories/GHSA-7hvw-q8q5-gpmj"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:084c8c2d084c8827cf156d9b6649324f83441f36995563c41aceb460eebbf477 · sha256:ffa9db15fbc3f628… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/greenshot/greenshot/security/advisories/GHSA-7hvw-q8q5-gpmj"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:084c8c2d084c8827cf156d9b6649324f83441f36995563c41aceb460eebbf477 · sha256:ffa9db15fbc3f628… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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