{"id":"CVE-2026-123197","kind":"vulnerability","aliases":["CVE-2026-123197"],"related":[],"title":"WPPConnect Server: unauthenticated access to other sessions' sticker media","description":"WPPConnect Server through 2.10.76 contains a missing authentication vulnerability that allows unauthenticated attackers to read decrypted sticker media through the /files static mount. Attackers can enumerate Unix timestamps in GET /files/file<timestamp>.webp requests to retrieve stickers from any session, bypassing per-session token checks.","summary":"WPPConnect Server, a WhatsApp automation server, serves decrypted sticker images through a static /files mount without checking authentication. An unauthenticated attacker can guess Unix timestamps in file names to download stickers from any session.","severity":"medium","cvss":6.9,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["package","self-hosted","whatsapp-automation","wppconnect-server"],"not_affected_if":["auth-required","mount-not-exposed"],"how_to_check":"- Check the installed WPPConnect Server version against the range in the advisory: through `2.10.76` is affected.\n- Look for a publicly reachable `/files` static route on the server that serves `file<timestamp>.webp` paths.","fix":"- Patch: see the linked GitHub fix; the fixed version is not stated in the sources provided.","status":"open","published_at":"2026-11-05T19:17:18+00:00","first_seen_at":"2026-11-05T19:40:35+00:00","triaged_at":"2026-11-05T19:43:13+00:00","updated_at":"2026-11-05T19:43:13+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-11-05T19:43:13Z","model":"claude-haiku-5-5","output":{"fix":"- Patch: see the linked GitHub fix; the fixed version is not stated in the sources provided.","reach":"internet","title":"WPPConnect Server: unauthenticated access to other sessions' sticker media","impact":"low","summary":"WPPConnect Server, a WhatsApp automation server, serves decrypted sticker images through a static /files mount without checking authentication. An unauthenticated attacker can guess Unix timestamps in file names to download stickers from any session.","audience":"businesses","category":"package","nicknames":[],"who_cares":["wppconnect-server","whatsapp-automation","self-hosted"],"confidence":0.6,"fix_status":"unknown","needs_auth":"no","worst_case":"Attacker downloads decrypted sticker images from other users' sessions","analyst_note":"Confirm the fixed version and whether the /files mount is exposed by default, from the linked GitHub patch and the vulncheck advisory.","how_to_check":"- Check the installed WPPConnect Server version against the range in the advisory: through `2.10.76` is affected.\n- Look for a publicly reachable `/files` static route on the server that serves `file<timestamp>.webp` paths.","plain_action":"","needs_analyst":true,"not_affected_if":["auth-required","mount-not-exposed"],"who_is_affected":"Teams running WPPConnect Server exposed to a network where the /files static mount is reachable. Deployments that do not expose that mount, or that sit behind an authenticating proxy, are less exposed. The sources do not give a fixed version.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000714,"input_tokens":4277,"output_tokens":572,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-123197':12A,15A '-2026':11A,14A '/files':39B,80C '/files/file':90C '2.10.76':63C 'access':4A 'allow':70C 'attack':46B,72C,83C 'authent':43B,67C 'autom':22B,30B 'bypass':99C 'check':42B,104C 'contain':64C 'cve':10A,13A 'decrypt':33B,75C 'download':55B 'enumer':85C 'file':52B 'get':89C 'guess':48B 'host':19B 'imag':35B 'media':9A,77C 'miss':66C 'mount':40B,82C 'name':53B 'packag':16B 'per':101C 'per-sess':100C 'read':74C 'request':92C 'retriev':94C 'self':18B 'self-host':17B 'serv':32B 'server':2A,25B,27B,31B,61C 'session':7A,59B,98C,102C 'static':38B,81C 'sticker':8A,34B,56B,76C,95C 'timestamp':50B,87C 'token':103C 'unauthent':3A,45B,71C 'unix':49B,86C 'vulner':68C 'webp':91C 'whatsapp':21B,29B 'whatsapp-autom':20B 'without':41B 'wppconnect':1A,24B,26B,60C 'wppconnect-serv':23B","nicknames":[],"mitigations":[],"who_affected":"Teams running WPPConnect Server exposed to a network where the /files static mount is reachable. Deployments that do not expose that mount, or that sit behind an authenticating proxy, are less exposed. The sources do not give a fixed version.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["medium","package","selfhosted","whatsappautomation","wppconnectserver"],"campaign_type":null,"first_public_at":"2026-11-05T19:17:18+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/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":"disclosure@vulncheck.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-123197","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123197","severity":null,"published_at":"2026-11-05T19:17:18+00:00","modified_at":"2026-11-05T19:17:18+00:00","first_seen_at":"2026-11-05T19:40:35+00:00","fetched_at":"2026-11-05T19:40:35+00:00","note":null}],"documents":[{"id":79185,"url":"https://github.com/wppconnect-team/wppconnect-server/commit/bf1faac7a14892207348c3dc5f6e03ed180e09e8","title":"Patch: github.com","kind":"other","source":"nvd","publisher":"vendor","text":null,"published_at":null,"relation":"fix","confidence":null,"note":"Patch: github.com"},{"id":79186,"url":"https://www.vulncheck.com/advisories/wppconnect-server-through-2.10.76-unauthenticated-sticker-media-disclosure-via-files","title":"Third-party advisory: www.vulncheck.com","kind":"advisory","source":"nvd","publisher":"research","text":null,"published_at":null,"relation":"advisory","confidence":null,"note":"Third-party advisory: www.vulncheck.com"}],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}