{"id":"CVE-2026-111916","kind":"vulnerability","aliases":["CVE-2026-111916"],"related":[],"title":"Admidio: unauthenticated users can read role-restricted weblinks via RSS feed","description":"Admidio before 5.0.16 contains an information disclosure vulnerability that allows unauthenticated attackers to view role-restricted weblinks because rss/links.php omits the category_view role-visibility filter. Attackers can request the weblinks RSS feed for an organization to retrieve link names, URLs, descriptions, categories, and creator names from restricted LNK categories.","summary":"Admidio before 5.0.16 has an RSS feed endpoint (rss/links.php) that skips the role-visibility check on weblink categories. An unauthenticated attacker can request the weblinks feed and read link names, URLs, descriptions, categories and creator names from categories meant only for certain roles.","severity":"medium","cvss":6.9,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["admidio","package","php","self-hosted"],"not_affected_if":["no-restricted-weblink-categories","version-5.0.16-or-later"],"how_to_check":"- Check the installed Admidio version in the admin panel or in the release files; versions below `5.0.16` are affected.\n- Request the weblinks RSS feed (`rss/links.php`) without logging in and see whether links from role-restricted categories appear.","fix":"- Upgrade Admidio to `5.0.16` or later.","status":"open","published_at":"2026-10-17T19:16:34+00:00","first_seen_at":"2026-10-23T21:57:14+00:00","triaged_at":"2026-10-25T03:41:04+00:00","updated_at":"2026-10-25T03:41:04+00:00","category":"package","confidence":0.8,"triage":{"at":"2026-10-25T03:41:04Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade Admidio to `5.0.16` or later.","reach":"internet","title":"Admidio: unauthenticated users can read role-restricted weblinks via RSS feed","impact":"low","summary":"Admidio before 5.0.16 has an RSS feed endpoint (rss/links.php) that skips the role-visibility check on weblink categories. An unauthenticated attacker can request the weblinks feed and read link names, URLs, descriptions, categories and creator names from categories meant only for certain roles.","category":"package","nicknames":[],"who_cares":["admidio","self-hosted","php"],"confidence":0.8,"needs_auth":"no","worst_case":"Unauthenticated users read link URLs and details from restricted categories.","analyst_note":"","how_to_check":"- Check the installed Admidio version in the admin panel or in the release files; versions below `5.0.16` are affected.\n- Request the weblinks RSS feed (`rss/links.php`) without logging in and see whether links from role-restricted categories appear.","needs_analyst":false,"not_affected_if":["version-5.0.16-or-later","no-restricted-weblink-categories"],"who_is_affected":"Organizations running self-hosted Admidio before 5.0.16 that publish weblink categories restricted to specific roles. Installations with no role-restricted weblink categories, or that are not reachable from the internet, have less exposure. Teams on 5.0.16 or later are not affected.","user_interaction":"no","needs_special_setup":"yes","severity_if_unknown":"medium"},"cost_usd":0.000603,"input_tokens":3343,"output_tokens":537,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-111916':15A,18A '-2026':14A,17A '5.0.16':27B,71C 'admidio':1A,19B,25B,69C 'allow':78C 'attack':46B,80C,97C 'categori':43B,58B,63B,91C,113C,120C 'certain':67B 'check':40B 'contain':72C 'creator':60B,115C 'cve':13A,16A 'descript':57B,112C 'disclosur':75C 'endpoint':32B 'feed':12A,31B,51B,103C 'filter':96C 'host':24B 'inform':74C 'link':54B,109C 'lnk':119C 'meant':64B 'name':55B,61B,110C,116C 'omit':89C 'organ':106C 'packag':20B 'php':21B 'read':5A,53B 'request':48B,99C 'restrict':8A,85C,118C 'retriev':108C 'role':7A,38B,68B,84C,94C 'role-restrict':6A,83C 'role-vis':37B,93C 'rss':11A,30B,102C 'rss/links.php':33B,88C 'self':23B 'self-host':22B 'skip':35B 'unauthent':2A,45B,79C 'url':56B,111C 'user':3A 'via':10A 'view':82C,92C 'visibl':39B,95C 'vulner':76C 'weblink':9A,42B,50B,86C,101C","nicknames":[],"mitigations":[],"who_affected":"Organizations running self-hosted Admidio before 5.0.16 that publish weblink categories restricted to specific roles. Installations with no role-restricted weblink categories, or that are not reachable from the internet, have less exposure. Teams on 5.0.16 or later are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-17T19:16:34+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-2026-111916","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111916","severity":null,"published_at":"2026-10-17T19:16:34+00:00","modified_at":"2026-10-21T22:16:48+00:00","first_seen_at":"2026-10-23T21:57:14+00:00","fetched_at":"2026-10-23T22:28:55+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"}