{"id":"CVE-2026-87399","kind":"vulnerability","aliases":["CVE-2026-87399"],"related":[],"title":"Oracle WebCenter Content: low-privileged user can alter data over HTTP","description":"Vulnerability in the Oracle WebCenter Content product of Oracle Fusion Middleware (component: Content Server).   The supported version that is affected is 14.1.2.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle WebCenter Content.  Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in  unauthorized creation, deletion or modification access to critical data or all Oracle WebCenter Content accessible data as well as  unauthorized read access to a subset of Oracle WebCenter Content accessible data. CVSS 3.1 Base Score 6.3 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:N).","summary":"Oracle WebCenter Content Server 14.1.2.0.0 has a flaw that a low-privileged attacker can reach over HTTP. A successful attack, which needs a person other than the attacker to act, lets the attacker create, delete or modify critical data and read a subset of stored content.","severity":"medium","cvss":6.3,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["fusion-middleware","oracle","self-hosted","vendor","webcenter-content"],"not_affected_if":["component-not-installed","other-versions"],"how_to_check":"- Confirm the deployed version of Oracle WebCenter Content Server is `14.1.2.0.0`, for example in the admin console or the installed product home.","fix":"- Apply the patch from Oracle's Critical Patch Update for the affected release (the sources do not name the patched version).\n- Until patched, restrict HTTP access to Content Server to trusted networks.","status":"open","published_at":"2026-10-20T22:20:18+00:00","first_seen_at":"2026-10-23T21:57:25+00:00","triaged_at":"2026-10-25T04:01:31+00:00","updated_at":"2026-10-25T04:01:31+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-25T04:01:31Z","model":"claude-haiku-5-5","output":{"fix":"- Apply the patch from Oracle's Critical Patch Update for the affected release (the sources do not name the patched version).\n- Until patched, restrict HTTP access to Content Server to trusted networks.","reach":"internet","title":"Oracle WebCenter Content: low-privileged user can alter data over HTTP","impact":"medium","summary":"Oracle WebCenter Content Server 14.1.2.0.0 has a flaw that a low-privileged attacker can reach over HTTP. A successful attack, which needs a person other than the attacker to act, lets the attacker create, delete or modify critical data and read a subset of stored content.","category":"vendor","nicknames":[],"who_cares":["oracle","webcenter-content","fusion-middleware","self-hosted"],"confidence":0.6,"needs_auth":"yes","worst_case":"attacker alters or deletes critical content and reads some data","analyst_note":"Check Oracle's Critical Patch Update advisory for the fixed version and whether a workaround exists; NVD text alone does not name one.","how_to_check":"- Confirm the deployed version of Oracle WebCenter Content Server is `14.1.2.0.0`, for example in the admin console or the installed product home.","needs_analyst":true,"not_affected_if":["other-versions","component-not-installed"],"who_is_affected":"Only deployments running Oracle WebCenter Content Server 14.1.2.0.0 are listed as affected. Teams on other releases or without this component can skip it.","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000628,"input_tokens":3524,"output_tokens":552,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':14A,17A '-87399':15A,18A '/av':180C '14.1.2.0.0':34B,98C '3.1':168C,179C '6.3':171C 'access':108C,141C,150C,157C,165C 'act':60B 'affect':96C 'allow':102C 'alter':9A 'attack':43B,50B,58B,63B,105C,117C,127C,129C 'base':169C 'compon':88C 'compromis':112C 'confidenti':172C 'content':3A,29B,32B,76B,82C,89C,115C,149C,164C 'creat':64B 'creation':137C 'critic':68B,143C 'cve':13A,16A 'cvss':167C,176C,178C 'data':10A,69B,144C,151C,166C 'delet':65B,138C 'easili':99C 'exploit':100C 'flaw':37B 'fusion':20B,86C 'fusion-middlewar':19B 'h/a':187C 'host':25B 'http':12A,47B,110C 'human':119C 'impact':175C 'integr':174C 'interact':120C 'l/i':186C 'l/pr':182C 'l/ui':183C 'let':61B 'low':5A,41B,103C 'low-privileg':4A,40B 'middlewar':21B,87C 'modif':140C 'modifi':67B 'n':188C 'n/ac':181C 'need':52B 'network':107C 'oracl':1A,22B,30B,80C,85C,113C,147C,162C 'person':54B,123C 'privileg':6A,42B,104C 'product':83C 'r/s':184C 'reach':45B 'read':71B,156C 'requir':118C 'result':134C 'score':170C 'self':24B 'self-host':23B 'server':33B,90C 'store':75B 'subset':73B,160C 'success':49B,116C,128C 'support':92C 'u/c':185C 'unauthor':136C,155C 'user':7A 'vector':177C 'vendor':26B 'version':93C 'via':109C 'vulner':77C,101C,132C 'webcent':2A,28B,31B,81C,114C,148C,163C 'webcenter-cont':27B 'well':153C","nicknames":[],"mitigations":[],"who_affected":"Only deployments running Oracle WebCenter Content Server 14.1.2.0.0 are listed as affected. Teams on other releases or without this component can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:20:18+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:N","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-87399","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-87399","severity":null,"published_at":"2026-10-20T22:20:18+00:00","modified_at":"2026-10-21T18:44:40+00:00","first_seen_at":"2026-10-23T21:57:25+00:00","fetched_at":"2026-10-23T22:29:00+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"}