{"cve":"CVE-2026-117563","nvd":{"published":"2026-10-27T14:16:38.557","modified":"2026-10-27T14:16:38.677","status":"Deferred","description":"MrDoc through 1.1.1 contains a broken access control vulnerability in the manage_doc_share type 3 branch that allows authenticated users to modify other users' document share settings because updates lack an ownership check. Attackers can compute predictable share tokens from the MD5 of document ID and username to re-enable disabled shares or remove access codes, exposing private documents.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","score":5.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","score":5.4},"cwes":["CWE-639"],"references":["https://github.com/zmister2016/MrDoc","https://github.com/zmister2016/MrDoc/blob/v1.1.1/app_doc/views.py#L1835-L1849","https://github.com/zmister2016/MrDoc/commit/2cd13ff0659dbef9aea59d5af122a21204942262","https://github.com/zmister2016/MrDoc/issues/208","https://www.vulncheck.com/advisories/mrdoc-through-1.1.1-broken-access-control-via-manage-doc-share"],"products":[],"source":"nvd","synced_at":"2026-10-27T14:40:07.677323569+00:00"},"epss":null,"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}