{"id":"CVE-2026-25892","state":"PUBLISHED","title":"Adminer has an Unauthenticated Persistent DoS via Array Injection in ?script=version Endpoint","description":"Adminer is open-source database management software. Adminer v5.4.1 and earlier has a version check mechanism where adminer.org sends signed version info via JavaScript postMessage, which the browser then POSTs to ?script=version. This endpoint lacks origin validation and accepts POST data from any source. An attacker can POST version[] parameter which PHP converts to an array. On next page load, openssl_verify() receives this array instead of string and throws TypeError, returning HTTP 500 to all users. Upgrade to Adminer 5.4.2.","publishedAt":"2026-02-09T21:26:45.224Z","updatedAt":"2026-02-10T15:57:46.865Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["vrana adminer"],"affected":[{"vendor":"vrana","product":"adminer","versions":[{"version":">= 4.6.2, < 5.4.2","status":"affected"}]}],"references":["https://github.com/vrana/adminer/security/advisories/GHSA-q4f2-39gr-45jh","https://github.com/vrana/adminer/commit/21d3a3150388677b18647d68aec93b7850e457d3","https://github.com/vrana/adminer/releases/tag/v5.4.2"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/25xxx/CVE-2026-25892.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-25892","state":"PUBLISHED","datePublished":"2026-02-09T21:26:45.224Z","dateUpdated":"2026-02-10T15:57:46.865Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-02-06T21:08:39.130Z"},"containers":{"cna":{"title":"Adminer has an Unauthenticated Persistent DoS via Array Injection in ?script=version Endpoint","descriptions":[{"lang":"en","value":"Adminer is open-source database management software. Adminer v5.4.1 and earlier has a version check mechanism where adminer.org sends signed version info via JavaScript postMessage, which the browser then POSTs to ?script=version. This endpoint lacks origin validation and accepts POST data from any source. An attacker can POST version[] parameter which PHP converts to an array. On next page load, openssl_verify() receives this array instead of string and throws TypeError, returning HTTP 500 to all users. Upgrade to Adminer 5.4.2."}],"affected":[{"vendor":"vrana","product":"adminer","versions":[{"version":">= 4.6.2, < 5.4.2","status":"affected"}]}],"references":[{"url":"https://github.com/vrana/adminer/security/advisories/GHSA-q4f2-39gr-45jh","name":"https://github.com/vrana/adminer/security/advisories/GHSA-q4f2-39gr-45jh","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/vrana/adminer/commit/21d3a3150388677b18647d68aec93b7850e457d3","name":"https://github.com/vrana/adminer/commit/21d3a3150388677b18647d68aec93b7850e457d3","tags":["x_refsource_MISC"]},{"url":"https://github.com/vrana/adminer/releases/tag/v5.4.2","name":"https://github.com/vrana/adminer/releases/tag/v5.4.2","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","lang":"en","description":"CWE-20: Improper Input Validation","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-02-09T21:26:45.224Z"},"source":{"advisory":"GHSA-q4f2-39gr-45jh","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-10T15:39:30.588522Z","id":"CVE-2026-25892","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-10T15:57:46.865Z"}}]}}}