{"id":"CVE-2026-4413","kind":"vulnerability","aliases":["CVE-2026-4413"],"related":[],"title":"IBM Concert: unauthenticated cross-site scripting in the web UI","description":"IBM Concert 1.0 through 3.0.0 is vulnerable to cross-site scripting. This vulnerability allows an unauthenticated attacker to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.","summary":"IBM Concert versions 1.0 through 3.0.0 have a cross-site scripting flaw in the web interface. An unauthenticated attacker can inject arbitrary JavaScript that runs in a user's trusted session and could expose credentials.","severity":"medium","cvss":6.1,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ibm-concert","self-hosted","vendor"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-10-19T18:17:07+00:00","first_seen_at":"2026-10-23T21:57:18+00:00","triaged_at":"2026-10-25T04:04:12+00:00","updated_at":"2026-10-25T04:04:12+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-25T04:04:12Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"internet","title":"IBM Concert: unauthenticated cross-site scripting in the web UI","impact":"medium","summary":"IBM Concert versions 1.0 through 3.0.0 have a cross-site scripting flaw in the web interface. An unauthenticated attacker can inject arbitrary JavaScript that runs in a user's trusted session and could expose credentials.","category":"vendor","nicknames":[],"who_cares":["ibm-concert","self-hosted"],"confidence":0.6,"needs_auth":"no","worst_case":"injected script runs in users' sessions and may expose credentials","analyst_note":"Check the IBM security bulletin for CVE-2026-4413 for the fixed version, affected deployment types and any workaround; the NVD entry alone does not give them.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000512,"input_tokens":3315,"output_tokens":361,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-4413':14A,17A '1.0':28B,63C '3.0.0':30B,65C 'allow':75C 'alter':89C 'arbitrari':47B,81C 'attack':44B,78C 'code':83C 'concert':2A,20B,26B,62C 'could':58B 'credenti':60B,96C 'cross':5A,34B,70C 'cross-sit':4A,33B,69C 'cve':12A,15A 'disclosur':97C 'emb':80C 'expos':59B 'flaw':37B 'function':92C 'host':23B 'ibm':1A,19B,25B,61C 'ibm-concert':18B 'inject':46B 'intend':91C 'interfac':41B 'javascript':48B,82C 'lead':94C 'potenti':93C 'run':50B 'script':7A,36B,72C 'self':22B 'self-host':21B 'session':56B,101C 'site':6A,35B,71C 'thus':88C 'trust':55B,100C 'ui':11A,87C 'unauthent':3A,43B,77C 'user':53B 'vendor':24B 'version':27B 'vulner':67C,74C 'web':10A,40B,86C 'within':98C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-19T18:17:07+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cvss_by":"psirt@us.ibm.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-4413","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4413","severity":null,"published_at":"2026-10-19T18:17:07+00:00","modified_at":"2026-10-19T20:55:02+00:00","first_seen_at":"2026-10-23T21:57:18+00:00","fetched_at":"2026-10-23T22:28:57+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"}