{"id":"CVE-2026-21640","aliases":["EUVD-2026-3329","GHSA-cr56-64wj-q2r7"],"status":"published","title":"HackerOne community member Faraz Ahmed (PakCyberbot) has reported a format string injection in...","description":"HackerOne community member Faraz Ahmed (PakCyberbot) has reported a format string injection in the Revive Adserver settings. When specific character combinations are used in a setting, the admin user console could be disabled due to a fatal PHP error.","severity":{"version":"3.0","score":2.7,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00251,"percentile":0.16657,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-134"],"published":"2026-01-20T20:48:47Z","modified":"2026-10-28T02:30:50Z","products":[{"vendor":"aquaplatform","product":"revive_adserver"},{"vendor":"revive","product":"revive adserver"}],"references":[{"url":"https://hackerone.com/reports/3445332","tags":["Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21640","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-cr56-64wj-q2r7"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21640.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-21640","description":"HackerOne community member Faraz Ahmed (PakCyberbot) has reported a format string injection in the Revive Adserver settings. When specific character combinations are used in a setting, the admin user console could be disabled due to a fatal PHP error.","status":"published","published":"2026-01-20T20:48:47.94Z","modified":"2026-01-21T18:52:43.635Z","cvss":[{"version":"3.0","score":2.7,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"}],"cwes":["CWE-134"],"updated_at":"2026-11-02T13:41:53.237769Z"}],"euvd":[{"id":"EUVD-2026-3329","description":"HackerOne community member Faraz Ahmed (PakCyberbot) has reported a format string injection in the Revive Adserver settings. When specific character combinations are used in a setting, the admin user console could be disabled due to a fatal PHP error.","status":"published","published":"2026-01-20T20:48:47Z","modified":"2026-01-21T18:52:43Z","cvss":[{"version":"3.0","score":2.7,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T19:48:49.473592Z"}],"ghsa":[{"id":"GHSA-cr56-64wj-q2r7","title":"HackerOne community member Faraz Ahmed (PakCyberbot) has reported a format string injection in...","description":"HackerOne community member Faraz Ahmed (PakCyberbot) has reported a format string injection in the Revive Adserver settings. When specific character combinations are used in a setting, the admin user console could be disabled due to a fatal PHP error.","status":"published","published":"2026-01-20T21:31:35Z","modified":"2026-01-21T21:31:31Z","cvss":[{"version":"3.0","score":2.7,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"cwes":["CWE-134"],"updated_at":"2026-11-02T15:05:50.792909Z"}],"nvd":[{"id":"CVE-2026-21640","description":"HackerOne community member Faraz Ahmed (PakCyberbot) has reported a format string injection in the Revive Adserver settings. When specific character combinations are used in a setting, the admin user console could be disabled due to a fatal PHP error.","status":"published","published":"2026-01-20T21:16:06.063Z","modified":"2026-06-17T10:18:51.563Z","cvss":[{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N","level":"low","assessor":"primary"},{"version":"3.0","score":2.7,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"secondary"}],"cwes":["CWE-134"],"updated_at":"2026-11-02T14:12:04.066712Z"}],"osv":[{"id":"CVE-2026-21640","description":"HackerOne community member Faraz Ahmed (PakCyberbot) has reported a format string injection in the Revive Adserver settings. When specific character combinations are used in a setting, the admin user console could be disabled due to a fatal PHP error.","status":"published","published":"2026-01-20T20:48:47.94Z","modified":"2026-10-28T02:30:50.292614775Z","cvss":[{"version":"3.0","score":2.7,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:44:58.42038Z"}]}}