{"id":"CVE-2026-54859","aliases":["EUVD-2026-112951","GHSA-6hr3-65pr-wchw"],"status":"published","title":"WordPress Preservation theme \u003c= 1.15 - PHP Object Injection vulnerability","description":"Unauthenticated PHP Object Injection in Preservation \u003c= 1.15 versions.","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":"2026-11-09","score":0.00526,"percentile":0.44855,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2026-10-29T15:24:03Z","modified":"2026-10-29T20:17:31Z","products":[{"vendor":"themerex","product":"preservation"}],"references":[{"url":"https://patchstack.com/database/wordpress/theme/preservation/vulnerability/wordpress-preservation-theme-1-15-php-object-injection-vulnerability?_s_id=cve","tags":["vdb-entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54859"},{"url":"https://github.com/advisories/GHSA-6hr3-65pr-wchw"}],"sources":{"cve":[{"id":"CVE-2026-54859","title":"WordPress Preservation theme \u003c= 1.15 - PHP Object Injection vulnerability","description":"Unauthenticated PHP Object Injection in Preservation \u003c= 1.15 versions.","status":"published","published":"2026-10-29T15:24:03.45Z","modified":"2026-10-29T19:40:30.116Z","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-502"],"updated_at":"2026-11-02T13:37:58.613221Z"}],"euvd":[{"id":"EUVD-2026-112951","description":"Unauthenticated PHP Object Injection in Preservation \u003c= 1.15 versions.","status":"published","published":"2026-10-29T15:24:03Z","modified":"2026-10-29T19:40:30Z","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":"2026-11-02T16:59:15.044173Z"}],"ghsa":[{"id":"GHSA-6hr3-65pr-wchw","title":"Unauthenticated PHP Object Injection in Preservation \u003c= 1.15 versions.","description":"Unauthenticated PHP Object Injection in Preservation \u003c= 1.15 versions.","status":"published","published":"2026-10-29T18:31:03Z","modified":"2026-10-29T18:31:04Z","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-502"],"updated_at":"2026-11-02T15:14:39.976988Z"}],"nvd":[{"id":"CVE-2026-54859","description":"Unauthenticated PHP Object Injection in Preservation \u003c= 1.15 versions.","status":"published","published":"2026-10-29T16:18:10.097Z","modified":"2026-10-29T20:17:31.677Z","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-502"],"updated_at":"2026-11-02T14:13:04.940026Z"}]}}