{"vulnerability": "CVE-2026-54003", "sightings": [{"uuid": "7465efb8-c20a-4cdd-b8c7-feae56f58efb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-54003", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mqaegaiygi2r", "content": "CVE-2026-54003 - cms\nIf your Kirby site is behind a reverse proxy and has no user accounts, an attacker could install the admin panel remotely. This is a serious risk, especially if your site is\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#cms #getkirby #composer #CVE #infosec", "creation_timestamp": "2026-07-09T19:26:06.719057Z"}, {"uuid": "86426a04-d26e-4104-b683-7ffda647d726", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-54003", "type": "seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/3mqagobxygh2k", "content": "CVE-2026-54003 - Kirby: External Initialization of the Panel on reverse proxy setups with the `Forwarded` header\nCVE ID : CVE-2026-54003\n \n Published : July 9, 2026, 7:17 p.m. | 31\u00a0minutes ago\n \n Description : Kirby is an open-source content management system. Prior to 4.9.4 a...", "creation_timestamp": "2026-07-09T20:06:28.515591Z"}, {"uuid": "7d31363e-967c-474a-aff4-67ee614766ac", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-54003", "type": "seen", "source": "https://infosec.exchange/users/offseq/statuses/116893445379245120", "content": "CVE-2026-54003 (CRITICAL, CVSS 9.1): getkirby Kirby CMS sites w/o users & behind certain reverse proxies risk remote admin creation via trusted IP headers. Upgrade to 4.9.4/5.4.4+ ASAP. More: https://radar.offseq.com/threat/cve-2026-54003-cwe-454-external-initialization-of--015a5d4d7df10357 #OffSeq #Vulnerability #KirbyCMS #InfoSec", "creation_timestamp": "2026-07-10T03:00:26.609075Z"}, {"uuid": "6ab592d2-3645-4cf5-a651-2b4ed13c1c2e", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-54003", "type": "seen", "source": "https://bsky.app/profile/offseq.bsky.social/post/3mqb5spfugh24", "content": "CVE-2026-54003 (CRITICAL): getkirby Kirby CMS sites with no users & behind reverse proxies can be remotely taken over via IP header misuse. Upgrade to 4.9.4 or 5.4.4+ now. https://radar.offseq.com/threat/cve-2026-54003-cwe-454-external-initialization-of--015a5d4d7df10357 #OffSeq #KirbyCMS #Vulner...", "creation_timestamp": "2026-07-10T03:00:32.607362Z"}]}