CVE-2025-55294
Command Injection via `format` option in screenshot-desktop
screenshot-desktop allows capturing a screenshot of your local machine. This vulnerability is a command injection issue. When user-controlled input is passed into the format option of the screenshot function, it is interpolated into a shell command without sanitization. This results in arbitrary command execution with the privileges of the calling process. This vulnerability is fixed in 1.15.2.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
9.8
Command Injection via `format` option in screenshot-desktop
screenshot-desktop allows capturing a screenshot of your local machine. This vulnerability is a command injection issue. When user-controlled input is passed into the format option of the screenshot function, it is interpolated into a shell command without sanitization. This results in arbitrary command execution with the privileges of the calling process. This vulnerability is fixed in 1.15.2.
- Record
CVE-2025-55294- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-77
- Updated
- 2026-11-02
EUVDEUVD-2025-25196
9.8
screenshot-desktop allows capturing a screenshot of your local machine. This vulnerability is a command injection issue. When user-controlled input is passed into the format option of the screenshot function, it is interpolated into a shell command without sanitization. This results in arbitrary command execution with the privileges of the calling process. This vulnerability is fixed in 1.15.2.
- Record
EUVD-2025-25196- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-gjx4-2c7g-fm94
9.8
screenshot-desktop vulnerable to command Injection via `format` option
Impact
This vulnerability is a command injection issue.
When user-controlled input is passed into the format option of the screenshot function, it is interpolated into a shell command without sanitization.
An attacker can craft malicious input such as:
{ format: "; echo vulnerable > /tmp/hello;" }
This results in arbitrary command execution with the privileges of the calling process.
Who is impacted:
Any application that accepts untrusted input and forwards it directly (or indirectly) into the format option is affected. If the library is used in a server-side context (e.g., API endpoints, web services), attackers may be able to exploit this remotely and without authentication, leading to full compromise of confidentiality, integrity, and availability.
CVSS v3.1 Base Score: 9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Patches
The issue has been patched in version 1.15.2.
All users are strongly recommended to upgrade to 1.15.2 or later.
All earlier versions are vulnerable.
Workarounds
If upgrading is not immediately possible, developers should:
- Strictly validate or whitelist acceptable
formatvalues (e.g.,"jpeg","png","webp"). - Reject or sanitize any unexpected input before passing it to the library.
- Avoid allowing user-controlled data to reach the
formatoption.
References
- Record
GHSA-gjx4-2c7g-fm94- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-77
- Updated
- 2026-11-02
NVD
9.8
screenshot-desktop allows capturing a screenshot of your local machine. This vulnerability is a command injection issue. When user-controlled input is passed into the format option of the screenshot function, it is interpolated into a shell command without sanitization. This results in arbitrary command execution with the privileges of the calling process. This vulnerability is fixed in 1.15.2.
- Record
CVE-2025-55294- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-77
- Updated
- 2026-11-02
OSV
9.8
Command Injection via `format` option in screenshot-desktop
screenshot-desktop allows capturing a screenshot of your local machine. This vulnerability is a command injection issue. When user-controlled input is passed into the format option of the screenshot function, it is interpolated into a shell command without sanitization. This results in arbitrary command execution with the privileges of the calling process. This vulnerability is fixed in 1.15.2.
- Record
CVE-2025-55294- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-77
- Updated
- 2026-11-02
OSVGHSA-gjx4-2c7g-fm94
9.8
screenshot-desktop vulnerable to command Injection via `format` option
Impact
This vulnerability is a command injection issue.
When user-controlled input is passed into the format option of the screenshot function, it is interpolated into a shell command without sanitization.
An attacker can craft malicious input such as:
{ format: "; echo vulnerable > /tmp/hello;" }
This results in arbitrary command execution with the privileges of the calling process.
Who is impacted:
Any application that accepts untrusted input and forwards it directly (or indirectly) into the format option is affected. If the library is used in a server-side context (e.g., API endpoints, web services), attackers may be able to exploit this remotely and without authentication, leading to full compromise of confidentiality, integrity, and availability.
CVSS v3.1 Base Score: 9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Patches
The issue has been patched in version 1.15.2.
All users are strongly recommended to upgrade to 1.15.2 or later.
All earlier versions are vulnerable.
Workarounds
If upgrading is not immediately possible, developers should:
- Strictly validate or whitelist acceptable
formatvalues (e.g.,"jpeg","png","webp"). - Reject or sanitize any unexpected input before passing it to the library.
- Avoid allowing user-controlled data to reach the
formatoption.
References
- Record
GHSA-gjx4-2c7g-fm94- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-77
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
screenshot-desktopnpm |
before 1.15.2 | 1.15.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-55294 is a critical vulnerability (CVSS 9.8) in Bencevans Screenshot-desktop, published August 19, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.45%, the 73rd percentile. Fixed in screenshot-desktop 1.15.2.
References
github.com/bencevans/screenshot-desktop/security/advisories/GHSA-gjx4-2c7g-fm94
github.com/bencevans/screenshot-desktop/commit/59c87b0c175eec76090e6ccde313f4fc5d569b78
nvd.nist.gov/vuln/detail/CVE-2025-55294
github.com/advisories/GHSA-gjx4-2c7g-fm94
github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55294.json
github.com/bencevans/screenshot-desktop