{"id":"CVE-2026-116800","kind":"vulnerability","aliases":["CVE-2026-116800"],"related":[],"title":"WWBN AVideo: crafted Accept-Language header includes server PHP files","description":"WWBN AVideo before 29.5.0 contains a local file inclusion vulnerability that allows unauthenticated attackers to include PHP files outside the locale directory via a crafted Accept-Language header. Attackers can use overlapping traversal sequences like ....// to bypass single-pass removal in setLanguage(), executing existing server-side PHP files in the application context.","summary":"WWBN AVideo before 29.5.0 has a local file inclusion flaw in setLanguage(): a crafted Accept-Language header with overlapping traversal sequences such as ....// bypasses the single-pass path filter. An unauthenticated attacker can make the application include and execute existing PHP files on the server.","severity":"medium","cvss":6.9,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["avideo","package","php","self-hosted","video-platform"],"not_affected_if":["not-avideo","patched-29.5.0-or-later"],"how_to_check":"- Check the installed AVideo version in the application's version file or admin panel; versions below `29.5.0` are exposed.\n- Confirm whether the deployment is internet-reachable, since the attack needs only an HTTP request with a crafted Accept-Language header.","fix":"- Upgrade AVideo to `29.5.0` or later.\n- Unknown whether a configuration workaround exists; the sources do not say.","status":"open","published_at":"2026-10-27T00:17:11+00:00","first_seen_at":"2026-10-27T00:25:55+00:00","triaged_at":"2026-10-27T00:26:32+00:00","updated_at":"2026-10-27T00:26:32+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-10-27T00:26:32Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade AVideo to `29.5.0` or later.\n- Unknown whether a configuration workaround exists; the sources do not say.","reach":"internet","title":"WWBN AVideo: crafted Accept-Language header includes server PHP files","impact":"high","summary":"WWBN AVideo before 29.5.0 has a local file inclusion flaw in setLanguage(): a crafted Accept-Language header with overlapping traversal sequences such as ....// bypasses the single-pass path filter. An unauthenticated attacker can make the application include and execute existing PHP files on the server.","category":"package","nicknames":[],"who_cares":["avideo","php","self-hosted","video-platform"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker executes existing server-side PHP files in the application context","analyst_note":"Check the NVD entry and the AVideo release notes for 29.5.0 to confirm the fix and whether any workaround exists; sources give only the description.","how_to_check":"- Check the installed AVideo version in the application's version file or admin panel; versions below `29.5.0` are exposed.\n- Confirm whether the deployment is internet-reachable, since the attack needs only an HTTP request with a crafted Accept-Language header.","needs_analyst":true,"not_affected_if":["not-avideo","patched-29.5.0-or-later"],"who_is_affected":"Any AVideo installation older than 29.5.0 that accepts requests from the internet is exposed, because setLanguage() reads the Accept-Language header on ordinary page requests without requiring a login. Installations behind a firewall limited to trusted users are at lower risk but should still upgrade. Teams not running AVideo can skip it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.00065,"input_tokens":3346,"output_tokens":630,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-116800':14A,17A '-2026':13A,16A '29.5.0':30B,77C 'accept':5A,42B,100C 'accept-languag':4A,41B,99C 'allow':85C 'applic':64B,127C 'attack':60B,87C,103C 'avideo':2A,18B,28B,75C 'bypass':51B,111C 'contain':78C 'context':128C 'craft':3A,40B,98C 'cve':12A,15A 'directori':95C 'execut':67B,118C 'exist':68B,119C 'file':11A,34B,70B,81C,91C,124C 'filter':57B 'flaw':36B 'header':7A,44B,102C 'host':23B 'includ':8A,65B,89C 'inclus':35B,82C 'languag':6A,43B,101C 'like':109C 'local':33B,80C,94C 'make':62B 'outsid':92C 'overlap':46B,106C 'packag':19B 'pass':55B,114C 'path':56B 'php':10A,20B,69B,90C,123C 'platform':26B 'remov':115C 'self':22B 'self-host':21B 'sequenc':48B,108C 'server':9A,73B,121C 'server-sid':120C 'setlanguag':38B,117C 'side':122C 'singl':54B,113C 'single-pass':53B,112C 'travers':47B,107C 'unauthent':59B,86C 'use':105C 'via':96C 'video':25B 'video-platform':24B 'vulner':83C 'wwbn':1A,27B,74C","nicknames":[],"mitigations":[],"who_affected":"Any AVideo installation older than 29.5.0 that accepts requests from the internet is exposed, because setLanguage() reads the Accept-Language header on ordinary page requests without requiring a login. Installations behind a firewall limited to trusted users are at lower risk but should still upgrade. Teams not running AVideo can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T00:17:11+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/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-2026-116800","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116800","severity":null,"published_at":"2026-10-27T00:17:11+00:00","modified_at":"2026-10-27T00:17:11+00:00","first_seen_at":"2026-10-27T00:25:55+00:00","fetched_at":"2026-10-27T00:25:55+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"}