{"id":"CVE-2026-111649","kind":"vulnerability","aliases":["CVE-2026-111649"],"related":[],"title":"paopao-ce: authenticated users can download other users' private media","description":"Rocboss paopao-ce through 0.6.0-alpha.3 contains an insecure direct object reference vulnerability in DownloadAttachment that allows authenticated users to access private media by supplying arbitrary content IDs. Attackers can enumerate sequential post_content ids via the /v1/attachment endpoint to obtain signed download URLs for other users' private, friend-only and following-only images, videos and attachments.","summary":"Paopao-ce through 0.6.0-alpha.3 lets any logged-in user request attachments by arbitrary content ID through the /v1/attachment endpoint. An attacker can enumerate sequential IDs and get signed download URLs for other users' private, friend-only and following-only images, videos and files.","severity":"high","cvss":7.1,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["other","paopao-ce","self-hosted","social-app"],"not_affected_if":["no-private-media","patched-version","registration-closed"],"how_to_check":"- Check the installed paopao-ce version; `unknown` whether the sources name the exact file or line to inspect\n- Confirm whether `/v1/attachment` is reachable on your deployment with a normal user account","fix":"- Upgrade paopao-ce past `0.6.0-alpha.3`; `unknown` which release contains the patch\n- Until patched, restrict or disable the `/v1/attachment` route for non-owners if possible","status":"open","published_at":"2026-10-16T18:17:45+00:00","first_seen_at":"2026-10-23T21:57:13+00:00","triaged_at":"2026-10-25T03:36:37+00:00","updated_at":"2026-10-25T03:36:37+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-25T03:36:37Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade paopao-ce past `0.6.0-alpha.3`; `unknown` which release contains the patch\n- Until patched, restrict or disable the `/v1/attachment` route for non-owners if possible","reach":"internet","title":"paopao-ce: authenticated users can download other users' private media","impact":"medium","summary":"Paopao-ce through 0.6.0-alpha.3 lets any logged-in user request attachments by arbitrary content ID through the /v1/attachment endpoint. An attacker can enumerate sequential IDs and get signed download URLs for other users' private, friend-only and following-only images, videos and files.","category":"other","nicknames":[],"who_cares":["paopao-ce","self-hosted","social-app"],"confidence":0.6,"needs_auth":"yes","worst_case":"Any logged-in user downloads other users' private photos and videos","analyst_note":"Sources list no fixed version or check command; find the patched release and commit in the NVD entry or upstream repo for paopao-ce.","how_to_check":"- Check the installed paopao-ce version; `unknown` whether the sources name the exact file or line to inspect\n- Confirm whether `/v1/attachment` is reachable on your deployment with a normal user account","needs_analyst":true,"not_affected_if":["no-private-media","registration-closed","patched-version"],"who_is_affected":"Self-hosted paopao-ce instances at version 0.6.0-alpha.3 or earlier that store private, friend-only or following-only media are exposed to any authenticated user. Instances with no private content or with registration closed to trusted users have less exposure. Deployments already on a later release that fixes the object reference check can skip this.","user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"unknown"},"cost_usd":0.000645,"input_tokens":3361,"output_tokens":617,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-111649':14A,17A '-2026':13A,16A '/v1/attachment':48B,114C '0.6.0':32B,81C 'access':97C 'allow':93C 'alpha.3':33B,82C 'app':27B 'arbitrari':43B,102C 'attach':41B,135C 'attack':51B,105C 'authent':4A,94C 'ce':3A,21B,30B,79C 'contain':83C 'content':44B,103C,110C 'cve':12A,15A 'direct':86C 'download':7A,59B,119C 'downloadattach':91C 'endpoint':49B,115C 'enumer':53B,107C 'file':75B 'follow':70B,130C 'following-on':69B,129C 'friend':66B,126C 'friend-on':65B,125C 'get':57B 'host':24B 'id':45B,55B,104C,111C 'imag':72B,132C 'insecur':85C 'let':34B 'log':37B 'logged-in':36B 'media':11A,99C 'object':87C 'obtain':117C 'paopao':2A,20B,29B,78C 'paopao-c':1A,19B,28B,77C 'post':109C 'privat':10A,64B,98C,124C 'refer':88C 'request':40B 'rocboss':76C 'self':23B 'self-host':22B 'sequenti':54B,108C 'sign':58B,118C 'social':26B 'social-app':25B 'suppli':101C 'url':60B,120C 'user':5A,9A,39B,63B,95C,123C 'via':112C 'video':73B,133C 'vulner':89C","nicknames":[],"mitigations":[],"who_affected":"Self-hosted paopao-ce instances at version 0.6.0-alpha.3 or earlier that store private, friend-only or following-only media are exposed to any authenticated user. Instances with no private content or with registration closed to trusted users have less exposure. Deployments already on a later release that fixes the object reference check can skip this.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-16T18:17:45+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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-2026-111649","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111649","severity":null,"published_at":"2026-10-16T18:17:45+00:00","modified_at":"2026-10-21T21:17:53+00:00","first_seen_at":"2026-10-23T21:57:13+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"}