{"id":"CVE-2020-26118","aliases":["EUVD-2020-18748","GHSA-qqc4-654m-g55g"],"status":"published","title":"In SmartBear Collaborator Server through 13.3.13302, use of the Google Web Toolkit (GWT) API...","description":"In SmartBear Collaborator Server through 13.3.13302, use of the Google Web Toolkit (GWT) API introduces a post-authentication Java deserialization vulnerability. The application's UpdateMemento class accepts a serialized Java object directly from the user without properly sanitizing it. A malicious object can be submitted to the server via an authenticated attacker to execute commands on the underlying system.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:L/S:U/UI:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.03807,"percentile":0.90177,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502","CWE-78"],"published":"2021-01-11T14:53:26Z","modified":"2026-06-17T03:07:37Z","products":[{"vendor":"smartbear","product":"collaborator"}],"references":[{"url":"https://support.smartbear.com/collaborator/docs/server/index.html","tags":["x_refsource_MISC","x_transferred","Product","Vendor Advisory"]},{"url":"https://support.smartbear.com/collaborator/docs/general-info/version-history/ver-13/ver-13-0.html","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://support.smartbear.com/collaborator/docs/general-info/whats-new.html","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-26118"},{"url":"https://github.com/advisories/GHSA-qqc4-654m-g55g"}],"sources":{"cve":[{"id":"CVE-2020-26118","description":"In SmartBear Collaborator Server through 13.3.13302, use of the Google Web Toolkit (GWT) API introduces a post-authentication Java deserialization vulnerability. The application's UpdateMemento class accepts a serialized Java object directly from the user without properly sanitizing it. A malicious object can be submitted to the server via an authenticated attacker to execute commands on the underlying system.","status":"published","published":"2021-01-11T14:53:26Z","modified":"2024-08-04T15:49:07.089Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:L/S:U/UI:N","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:35:46.129376Z"}],"euvd":[{"id":"EUVD-2020-18748","description":"In SmartBear Collaborator Server through 13.3.13302, use of the Google Web Toolkit (GWT) API introduces a post-authentication Java deserialization vulnerability. The application's UpdateMemento class accepts a serialized Java object directly from the user without properly sanitizing it. A malicious object can be submitted to the server via an authenticated attacker to execute commands on the underlying system.","status":"published","published":"2021-01-11T14:53:26Z","modified":"2024-08-04T15:49:07Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:L/S:U/UI:N","level":"high"}],"updated_at":"2026-11-03T03:07:15.778249Z"}],"ghsa":[{"id":"GHSA-qqc4-654m-g55g","title":"In SmartBear Collaborator Server through 13.3.13302, use of the Google Web Toolkit (GWT) API...","description":"In SmartBear Collaborator Server through 13.3.13302, use of the Google Web Toolkit (GWT) API introduces a post-authentication Java deserialization vulnerability. The application's UpdateMemento class accepts a serialized Java object directly from the user without properly sanitizing it. A malicious object can be submitted to the server via an authenticated attacker to execute commands on the underlying system.","status":"published","published":"2022-05-24T17:38:31Z","modified":"2023-01-29T05:06:02Z","cwes":["CWE-78"],"updated_at":"2026-11-02T14:45:55.677123Z"}],"nvd":[{"id":"CVE-2020-26118","description":"In SmartBear Collaborator Server through 13.3.13302, use of the Google Web Toolkit (GWT) API introduces a post-authentication Java deserialization vulnerability. The application's UpdateMemento class accepts a serialized Java object directly from the user without properly sanitizing it. A malicious object can be submitted to the server via an authenticated attacker to execute commands on the underlying system.","status":"published","published":"2021-01-11T15:15:12.967Z","modified":"2026-06-17T03:07:37.873Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:06:28.892872Z"}]}}