{"id":"CVE-2026-55573","revision":null,"records":[{"revision":"3c81f49141984853bdce0e7790dc6109","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-55573","aliases":[],"title":"e107: Unsafe deserialization in install.php allows unauthenticated RCE via POP chain","description":"e107 is a content management system (CMS). Prior to 2.3.7, install.php decodes the attacker-controlled previous_steps POST parameter and passes it to unserialize() at file scope and again in the e_install constructor without restricting allowed classes. The installer remains accessible after a normal installation, and a crafted object graph using the bundled GuzzleHttp\\Psr7\\PumpStream class can flow through paths.hash into site_path, where string coercion invokes an attacker-controlled callable. An unauthenticated attacker who can reach install.php can therefore execute arbitrary PHP functions with the web server process's privileges, leading to full server compromise. This issue is fixed in version 2.3.7.","state":0,"publishedAt":"2026-10-14T18:12:58.64+00:00","modifiedAt":"2026-10-15T15:01:54.402+00:00","affected":[{"ecosystem":"Vendor product","name":"e107","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"e107inc\",\n                    \"product\": \"e107\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 2.3.7\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://github.com/e107inc/e107/security/advisories/GHSA-c8h6-wpj3-4cr8","https://github.com/e107inc/e107/commit/5d6d649e8cf01854d6024d07997c2449fdd75f24","https://github.com/e107inc/e107/commit/6c404295213952aedb9b3689be19dd4c7ba550b0","https://github.com/e107inc/e107/releases/tag/v2.3.7"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-55573","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-55573","identifiers":["CVE-2026-55573"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-54237df0f49d48dfb07a056428a01d7e","complete":false,"records":13655,"lastAttemptAt":"2026-11-09T16:16:34.3060476+00:00","lastSuccessAt":"2026-11-09T16:16:34.302+00:00","error":"7 identifier lookups failed; latest failures include HTTP 403. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-09T16:16:34.302+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13364,"expectedIdentifiers":13707,"failedIdentifiers":7},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-09T16:04:20.3337991+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T16:04:20.3337991+00:00","lastSuccessAt":"2026-11-09T16:04:20.5371945+00:00","error":null,"lastVerifiedAt":"2026-11-09T16:04:20.5371945+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-8cc05ce4cf7c4475af30990d730fa017","complete":true,"records":13667,"lastAttemptAt":"2026-11-09T16:04:33.7462569+00:00","lastSuccessAt":"2026-11-09T16:04:33.741+00:00","error":null,"lastVerifiedAt":"2026-11-09T16:04:33.741+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13707,"expectedIdentifiers":13707,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-980593e6977a6d1b4fb1eed5a1ffe88a468736f89f0a06f710924ad59132c023","complete":true,"records":9914,"lastAttemptAt":"2026-11-09T16:04:20.1708791+00:00","lastSuccessAt":"2026-11-08T11:07:07.068788+00:00","error":null,"lastVerifiedAt":"2026-11-09T16:04:20.1708791+00:00","snapshotPublishedAt":"2026-11-08T11:02:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-fde804134ecdda0ddd5ff5c26ee1fff5a6fa659311f7ef2e51c6ad54964db0e2","complete":true,"records":1971,"lastAttemptAt":"2026-11-09T17:02:16.3773977+00:00","lastSuccessAt":"2026-11-06T19:03:17.0399903+00:00","error":null,"lastVerifiedAt":"2026-11-09T17:02:16.3773977+00:00","snapshotPublishedAt":"2026-11-06T18:17:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-c905fa1bd26c7b261e77cc7202a86dc766ff31c2b096b501f3bf44f561e34970","complete":true,"records":3063,"lastAttemptAt":"2026-11-09T16:04:20.2823229+00:00","lastSuccessAt":"2026-11-09T12:02:21.7931207+00:00","error":null,"lastVerifiedAt":"2026-11-09T16:04:20.2823229+00:00","snapshotPublishedAt":"2026-11-09T11:18:00+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-e88565d90b43c4a1bda916e33427c1b6f49f68cfbb010c54e1b5410320dbe0cf","complete":true,"records":231301,"lastAttemptAt":"2026-11-09T17:02:22.7465155+00:00","lastSuccessAt":"2026-11-09T16:04:18.2915457+00:00","error":null,"lastVerifiedAt":"2026-11-09T16:04:20.0393138+00:00","snapshotPublishedAt":"2026-11-09T15:33:10+00:00","importing":true,"stagedRecords":231305,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}