{"id":"CVE-2026-117679","kind":"vulnerability","aliases":["CVE-2026-117679"],"related":[],"title":"SHIRASAGI: authenticated user can run scripts in other users' browsers","description":"A cross-site scripting vulnerability exists in SHIRASAGI, which may allow an authenticated attacker to execute arbitrary script in a user's web browser when the user accesses a website using the affected product.","summary":"SHIRASAGI has a cross-site scripting flaw that lets a logged-in attacker run arbitrary script in a user's browser when that user visits a page of the affected product. The attacker gets the victim's browser session context, such as acting as the user inside the site.","severity":"medium","cvss":5.4,"epss":0.00139,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["cms","other","self-hosted","shirasagi"],"not_affected_if":["auth-required"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-05T09:17:04+00:00","first_seen_at":"2026-11-05T09:38:09+00:00","triaged_at":"2026-11-05T09:38:34+00:00","updated_at":"2026-11-05T18:37:38+00:00","category":"other","confidence":0.4,"triage":{"at":"2026-11-05T09:38:34Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"internet","title":"SHIRASAGI: authenticated user can run scripts in other users' browsers","impact":"medium","summary":"SHIRASAGI has a cross-site scripting flaw that lets a logged-in attacker run arbitrary script in a user's browser when that user visits a page of the affected product. The attacker gets the victim's browser session context, such as acting as the user inside the site.","audience":"businesses","category":"other","nicknames":[],"who_cares":["shirasagi","cms","self-hosted"],"confidence":0.4,"fix_status":"unknown","needs_auth":"yes","worst_case":"Script runs in a victim's browser inside the site session","analyst_note":"Find the affected SHIRASAGI versions, the vulnerable page or field, and any vendor fix in the NVD entry or the project's advisory.","how_to_check":"- unknown","plain_action":"","needs_analyst":true,"not_affected_if":["auth-required"],"who_is_affected":"Teams that run SHIRASAGI, the Japanese government-oriented CMS, are exposed when users can log in and view content. The sources do not name affected versions or configurations. unknown","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000643,"input_tokens":4196,"output_tokens":446,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-117679':13A,16A '-2026':12A,15A 'access':102C 'act':67B 'affect':54B,107C 'allow':85C 'arbitrari':39B,91C 'attack':37B,57B,88C 'authent':2A,87C 'browser':10A,45B,62B,98C 'cms':17B 'context':64B 'cross':27B,76C 'cross-sit':26B,75C 'cve':11A,14A 'execut':90C 'exist':80C 'flaw':30B 'get':58B 'host':21B 'insid':71B 'let':32B 'log':35B 'logged-in':34B 'may':84C 'page':51B 'product':55B,108C 'run':5A,38B 'script':6A,29B,40B,78C,92C 'self':20B 'self-host':19B 'session':63B 'shirasagi':1A,22B,23B,82C 'site':28B,73B,77C 'use':105C 'user':3A,9A,43B,48B,70B,95C,101C 'victim':60B 'visit':49B 'vulner':79C 'web':97C 'websit':104C","nicknames":[],"mitigations":[],"who_affected":"Teams that run SHIRASAGI, the Japanese government-oriented CMS, are exposed when users can log in and view content. The sources do not name affected versions or configurations. unknown","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["cms","medium","other","selfhosted","shirasagi"],"campaign_type":null,"first_public_at":"2026-11-05T09:17:04+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"vultures@jpcert.or.jp","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-117679","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-117679","severity":null,"published_at":"2026-11-05T09:17:04+00:00","modified_at":"2026-11-05T09:17:04+00:00","first_seen_at":"2026-11-05T09:38:09+00:00","fetched_at":"2026-11-05T09:38:09+00:00","note":null},{"source":"epss","external_id":"CVE-2026-117679","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-117679","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-11-05T18:37:38+00:00","fetched_at":"2026-11-05T18:37:38+00:00","note":null}],"documents":[],"exploit_sources":[{"type":"epss","score":0.00139,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-117679"}],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}