{"vulnerability": "CVE-2026-53609", "sightings": [{"uuid": "108c4282-8148-4443-aed5-cdec376dbc11", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-53609", "type": "seen", "source": "https://infosec.exchange/users/offseq/statuses/116740562842207633", "content": "\ud83d\udea8 Prototype pollution in ApostropheCMS <4.30.1 (CVE-2026-53609): Authenticated editors can bypass API endpoint auth for unauthenticated users. No fix yet \u2014 restrict editor access & monitor advisories! https://radar.offseq.com/threat/cve-2026-53609-cwe-1321-improperly-controlled-modi-874d30d1 #OffSeq #CVE202653609 #ApostropheCMS #infosec", "creation_timestamp": "2026-06-13T03:00:25.167799Z"}, {"uuid": "a008e7b8-320f-47aa-bcd8-2dda05355a76", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-53609", "type": "seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/3mo53qfrkgo2x", "content": "CVE-2026-53609 - Apostrophe has Server-Side Prototype Pollution in apos.util.set via patch operators that leads to process-wide authorization bypass\nCVE ID : CVE-2026-53609\n \n Published : June 12, 2026, 10:16 p.m. | 2\u00a0hours, 51\u00a0minutes ago\n \n Description : ApostropheCMS is an ...", "creation_timestamp": "2026-06-13T01:24:30.669942Z"}, {"uuid": "41a416de-bd6e-41d7-9ea3-a87b2be0fe9c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-53609", "type": "seen", "source": "https://bsky.app/profile/offseq.bsky.social/post/3mo5b7rkn4b25", "content": "CRITICAL: ApostropheCMS <4.30.1 hit by prototype pollution vuln. Authenticated editors can bypass API auth for unauthenticated users \u2014 no patch yet. Restrict access, monitor advisories. https://radar.offseq.com/threat/cve-2026-53609-cwe-1321-improperly-controlled-modi-874d30d1 #OffSeq #Apostrophe...", "creation_timestamp": "2026-06-13T03:00:26.146743Z"}]}