{"id":"CVE-2025-55294","aliases":["EUVD-2025-25196","GHSA-gjx4-2c7g-fm94"],"status":"published","title":"Command Injection via `format` option in screenshot-desktop","description":"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.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01448,"percentile":0.73547,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-77"],"published":"2025-08-19T17:34:54Z","modified":"2026-10-28T02:31:09Z","fixes":[{"ecosystem":"npm","package":"screenshot-desktop","fixed_in":["1.15.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"screenshot-desktop","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.2"}]}]},{"source":"osv","ecosystem":"npm","package":"screenshot-desktop","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.15.2"}]}]}],"products":[{"vendor":"bencevans","product":"screenshot-desktop"}],"references":[{"url":"https://github.com/bencevans/screenshot-desktop/security/advisories/GHSA-gjx4-2c7g-fm94","tags":["x_refsource_CONFIRM","advisory","web"]},{"url":"https://github.com/bencevans/screenshot-desktop/commit/59c87b0c175eec76090e6ccde313f4fc5d569b78","tags":["x_refsource_MISC","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55294","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-gjx4-2c7g-fm94"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55294.json","tags":["advisory"]},{"url":"https://github.com/bencevans/screenshot-desktop","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-55294","title":"Command Injection via `format` option in screenshot-desktop","description":"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.","status":"published","published":"2025-08-19T17:34:54.656Z","modified":"2025-08-19T20:03:52.409Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:32:52.839698Z"}],"euvd":[{"id":"EUVD-2025-25196","description":"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.","status":"published","published":"2025-08-19T17:34:54Z","modified":"2025-08-19T20:03:52Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T20:31:55.90596Z"}],"ghsa":[{"id":"GHSA-gjx4-2c7g-fm94","title":"screenshot-desktop vulnerable to command Injection via `format` option","description":"## Impact\nThis vulnerability is a **command injection** issue.  \nWhen user-controlled input is passed into the `format` option of the screenshot function, it is interpolated into a shell command without sanitization.  \nAn attacker can craft malicious input such as:\n\n    { format: \"; echo vulnerable \u003e /tmp/hello;\" }\n\nThis results in arbitrary command execution with the privileges of the calling process.\n\n**Who is impacted:**  \nAny 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.\n\n**CVSS v3.1 Base Score:** 9.8 (Critical)  \n`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`\n\n\n## Patches\nThe issue has been patched in **version 1.15.2**.  \nAll users are strongly recommended to upgrade to **1.15.2 or later**.  \nAll earlier versions are vulnerable.\n\n\n\n## Workarounds\nIf upgrading is not immediately possible, developers should:\n- **Strictly validate or whitelist** acceptable `format` values (e.g., `\"jpeg\"`, `\"png\"`, `\"webp\"`).\n- **Reject or sanitize** any unexpected input before passing it to the library.\n- Avoid allowing user-controlled data to reach the `format` option.\n\n\n\n## References\n- [CWE-78: OS Command Injection](https://cwe.mitre.org/data/definitions/78.html)  \n- [OWASP: Command Injection](https://owasp.org/www-community/attacks/Command_Injection)","status":"published","published":"2025-08-19T20:17:45Z","modified":"2025-08-19T20:17:46Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:38:53.767052Z"}],"nvd":[{"id":"CVE-2025-55294","description":"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.","status":"published","published":"2025-08-19T18:15:29.14Z","modified":"2026-06-17T09:41:36.03Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:11:24.730342Z"}],"osv":[{"id":"CVE-2025-55294","title":"Command Injection via `format` option in screenshot-desktop","description":"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.","status":"published","published":"2025-08-19T17:34:54.656Z","modified":"2026-10-28T02:31:09.717450399Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T15:44:50.863921Z"},{"id":"GHSA-gjx4-2c7g-fm94","title":"screenshot-desktop vulnerable to command Injection via `format` option","description":"## Impact\nThis vulnerability is a **command injection** issue.  \nWhen user-controlled input is passed into the `format` option of the screenshot function, it is interpolated into a shell command without sanitization.  \nAn attacker can craft malicious input such as:\n\n    { format: \"; echo vulnerable \u003e /tmp/hello;\" }\n\nThis results in arbitrary command execution with the privileges of the calling process.\n\n**Who is impacted:**  \nAny 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.\n\n**CVSS v3.1 Base Score:** 9.8 (Critical)  \n`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`\n\n\n## Patches\nThe issue has been patched in **version 1.15.2**.  \nAll users are strongly recommended to upgrade to **1.15.2 or later**.  \nAll earlier versions are vulnerable.\n\n\n\n## Workarounds\nIf upgrading is not immediately possible, developers should:\n- **Strictly validate or whitelist** acceptable `format` values (e.g., `\"jpeg\"`, `\"png\"`, `\"webp\"`).\n- **Reject or sanitize** any unexpected input before passing it to the library.\n- Avoid allowing user-controlled data to reach the `format` option.\n\n\n\n## References\n- [CWE-78: OS Command Injection](https://cwe.mitre.org/data/definitions/78.html)  \n- [OWASP: Command Injection](https://owasp.org/www-community/attacks/Command_Injection)","status":"published","published":"2025-08-19T20:17:45Z","modified":"2025-08-19T20:42:37.558563Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T15:46:47.822182Z"}]}}