VDB-340008 · CVE-2026-22035 · GHSA-7hvw-q8q5-gpmj

Greenshot up to 1.3.310 ExternalCommandDestination.cs FormatArguments os command injection

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Greenshot up to 1.3.310 and classified as critical. This impacts the function FormatArguments of the file ExternalCommandDestination.cs. The manipulation results in os command injection. This vulnerability was named CVE-2026-22035. The attack needs to be approached locally. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Greenshot up to 1.3.310. It has been classified as critical. Affected is the function FormatArguments of the file ExternalCommandDestination.cs. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-22035 since 01/05/2026. The exploitability is told to be difficult. The attack needs to be approached locally. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1202.

The vulnerability scanner Nessus provides a plugin with the ID 300181 (Greenshot < 1.3.311 OS Command Injection (GHSA-7hvw-q8q5-gpmj)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.3.311 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 5dedd5c9f0a9896fa0af1d4980d875a48bf432cb is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at CNNVD (CNNVD-202601-1574) and Tenable (300181). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Greenshot

Version

1.3.310

License

open-source

Website

Product: https://github.com/greenshot/greenshot/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.3
NVD Vector: 🔒

CNA Base Score: 7.7
CNA Vector (GitHub_M): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 300181
Nessus Name: Greenshot < 1.3.311 OS Command Injection (GHSA-7hvw-q8q5-gpmj)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Greenshot 1.3.311
Patch: 5dedd5c9f0a9896fa0af1d4980d875a48bf432cb

Timelineinfo

01/05/2026 CVE reserved
01/08/2026 +3 days Advisory disclosed
01/08/2026 +0 days VulDB entry created
03/02/2026 +53 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-7hvw-q8q5-gpmj
Status: Confirmed

CVE: CVE-2026-22035 (🔒)
GCVE (CVE): GCVE-0-2026-22035
GCVE (VulDB): GCVE-100-340008
CNNVD: CNNVD-202601-1574 - GreenShot 安全漏洞

Entryinfo

Created: 01/08/2026 08:06
Updated: 03/02/2026 18:22
Changes: 01/08/2026 08:06 (68), 01/09/2026 15:28 (6), 01/10/2026 16:41 (1), 01/11/2026 22:43 (1), 01/28/2026 01:01 (11), 03/02/2026 18:22 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.