{"id":"CVE-2026-66563","published":"2026-10-10T20:16:45Z","modified":"2026-10-13T13:28:15Z","title":"Unauthenticated PHP Object Injection in Windsor <= 2.10 versions","vendor":"ThemeREX","product":"Windsor","tier":"core","eol":null,"description":{"text":"Unauthenticated PHP Object Injection in Windsor <= 2.10 versions.","provenance":"source","from":"NVD"},"summary":{"text":"The Windsor theme from ThemeREX, in versions 2.10 and earlier, contains an unauthenticated PHP object injection flaw involving deserialization of untrusted data. An unauthenticated remote attacker can exploit it over the network with no privileges and no user interaction, with the attack requiring only that the vulnerable Windsor version be in use.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:20:42Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.00304,"percentile":0.23236,"date":"2026-10-30","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":{"pulseCount":10,"pulses":[{"name":"Known_Cve | Oct 21, 2026 | Part 1/4","url":"https://otx.alienvault.com/pulse/6ad781365a703b9c48649e66","created":"2026-10-20"},{"name":"Known_Cve | Oct 20, 2026 | Part 1/4","url":"https://otx.alienvault.com/pulse/6ad62f6910d6449918d5e634","created":"2026-10-19"},{"name":"Known_Cve | Oct 19, 2026 | Part 1/4","url":"https://otx.alienvault.com/pulse/6ad4dda86020bf504fd274dd","created":"2026-10-18"},{"name":"Known_Cve | Oct 18, 2026 | Part 1/4","url":"https://otx.alienvault.com/pulse/6ad38c282daff94afd324191","created":"2026-10-17"},{"name":"Known_Cve | Oct 17, 2026 | Part 1/4","url":"https://otx.alienvault.com/pulse/6ad23ab08ed96f8b8bdea241","created":"2026-10-16"},{"name":"Known_Cve | Oct 16, 2026 | Part 1/3","url":"https://otx.alienvault.com/pulse/6ad0e933fc9a5a47b66d7921","created":"2026-10-15"},{"name":"Known_Cve | Oct 15, 2026 | Part 2/3","url":"https://otx.alienvault.com/pulse/6acf9878b4135e4a2037eb34","created":"2026-10-14"},{"name":"Known_Cve | Oct 14, 2026 | Part 2/3","url":"https://otx.alienvault.com/pulse/6ace4672cf606a4598005652","created":"2026-10-13"},{"name":"Known_Cve | Oct 13, 2026 | Part 2/2","url":"https://otx.alienvault.com/pulse/6accf72a849f791bc729312a","created":"2026-10-12"},{"name":"Known_Cve | Oct 12, 2026 | Part 2/2","url":"https://otx.alienvault.com/pulse/6acba8aca71285f9db866402","created":"2026-10-11"}],"provenance":"machine"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"references":[{"url":"https://patchstack.com/database/wordpress/theme/windsor/vulnerability/wordpress-windsor-theme-2-10-php-object-injection-vulnerability?_s_id=cve","tags":[]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-96517","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-96517","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[],"timeline":[{"date":"2026-10-10","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66563","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":13.9,"factors":[{"name":"In a KEV catalog","points":0.0,"detail":"not listed"},{"name":"Recent KEV listing","points":0.0,"detail":"not listed"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":4.65,"detail":"percentile 0.2324"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":2.36,"detail":"10 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}