{"id":"CVE-2026-91552","kind":"vulnerability","aliases":["CVE-2026-91552"],"related":[],"title":"Oracle WebCenter Sites: unauthenticated HTTP flaw exposes all stored data","description":"Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites).  Supported versions that are affected are 12.2.1.4.0 and  14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Sites.  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Oracle WebCenter Sites accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).","summary":"Oracle WebCenter Sites 12.2.1.4.0 and 14.1.2.0.0 contain a flaw that an unauthenticated remote attacker can reach over HTTP. A successful attack gives unauthorized read access to critical data and potentially all data the application can access.","severity":"high","cvss":7.5,"epss":0.00398,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["oracle-fusion-middleware","oracle-webcenter-sites","self-hosted","vendor"],"not_affected_if":[],"how_to_check":"- Check the installed WebCenter Sites version against `12.2.1.4.0` and `14.1.2.0.0`\n- unknown","fix":"- Apply the Oracle Critical Patch Update fix for WebCenter Sites, as listed in the Oracle advisory\n- unknown","status":"open","published_at":"2026-10-20T22:20:58+00:00","first_seen_at":"2026-10-23T21:57:27+00:00","triaged_at":"2026-10-25T03:17:10+00:00","updated_at":"2026-10-25T12:38:51+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-25T03:17:10Z","model":"claude-haiku-5-5","output":{"fix":"- Apply the Oracle Critical Patch Update fix for WebCenter Sites, as listed in the Oracle advisory\n- unknown","reach":"internet","title":"Oracle WebCenter Sites: unauthenticated HTTP flaw exposes all stored data","impact":"high","summary":"Oracle WebCenter Sites 12.2.1.4.0 and 14.1.2.0.0 contain a flaw that an unauthenticated remote attacker can reach over HTTP. A successful attack gives unauthorized read access to critical data and potentially all data the application can access.","category":"vendor","nicknames":[],"who_cares":["oracle-webcenter-sites","self-hosted","oracle-fusion-middleware"],"confidence":0.6,"needs_auth":"no","worst_case":"Unauthenticated attacker reads critical and potentially all accessible data","analyst_note":"Find the Oracle CPU advisory and patched versions for WebCenter Sites; the NVD entry does not list fixed releases or the affected endpoint.","how_to_check":"- Check the installed WebCenter Sites version against `12.2.1.4.0` and `14.1.2.0.0`\n- unknown","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Teams running Oracle WebCenter Sites 12.2.1.4.0 or 14.1.2.0.0 with HTTP reachable from the network. The sources do not say which configurations or features are required, so systems on these versions should be treated as exposed until patched.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000631,"input_tokens":3488,"output_tokens":564,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-2026':12A,15A '-91552':13A,16A '/av':138C '12.2.1.4.0':32B,85C '14.1.2.0.0':34B,87C '3.1':128C,137C '7.5':131C 'access':53B,64B,96C,113C,119C,125C 'affect':83C 'allow':91C 'applic':62B 'attack':42B,49B,93C,105C 'base':129C 'complet':118C 'compon':76C 'compromis':100C 'confidenti':132C 'contain':35B 'critic':55B,115C 'cve':11A,14A 'cvss':127C,134C,136C 'data':10A,56B,60B,116C,126C 'easili':88C 'exploit':89C 'expos':7A 'flaw':6A,37B 'fusion':19B,74C 'give':50B 'h/i':144C 'host':27B 'http':5A,46B,98C 'impact':133C 'l/pr':140C 'middlewar':20B,75C 'n':146C 'n/a':145C 'n/ac':139C 'n/s':142C 'n/ui':141C 'network':95C 'oracl':1A,18B,22B,29B,68C,73C,101C,122C 'oracle-fusion-middlewar':17B 'oracle-webcenter-sit':21B 'potenti':58B 'product':71C 'reach':44B 'read':52B 'remot':41B 'result':110C 'score':130C 'self':26B 'self-host':25B 'site':3A,24B,31B,70C,78C,103C,124C 'store':9A 'success':48B,104C 'support':79C 'u/c':143C 'unauthent':4A,40B,92C 'unauthor':51B,112C 'vector':135C 'vendor':28B 'version':80C 'via':97C 'vulner':65C,90C,108C 'webcent':2A,23B,30B,69C,77C,102C,123C","nicknames":[],"mitigations":[],"who_affected":"Teams running Oracle WebCenter Sites 12.2.1.4.0 or 14.1.2.0.0 with HTTP reachable from the network. The sources do not say which configurations or features are required, so systems on these versions should be treated as exposed until patched.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:20:58+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-91552","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91552","severity":null,"published_at":"2026-10-20T22:20:58+00:00","modified_at":"2026-10-21T18:44:55+00:00","first_seen_at":"2026-10-23T21:57:27+00:00","fetched_at":"2026-10-23T22:29:01+00:00","note":null},{"source":"epss","external_id":"CVE-2026-91552","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-91552","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-25T12:38:51+00:00","fetched_at":"2026-10-25T12:38:51+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}