Vulnerability DatabaseCVE-2026-117563
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CVE-2026-117563
Published:October 27, 2026
Updated:October 29, 2026
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.
Related Resources (6)
https://github.com/zmister2016/MrDoc/issues/208
https://nvd.nist.gov/vuln/detail/CVE-2026-117563
https://github.com/zmister2016/MrDoc
https://www.vulncheck.com/advisories/mrdoc-through-1.1.1-broken-access-control-via-manage-doc-share
https://github.com/zmister2016/MrDoc/commit/2cd13ff0659dbef9aea59d5af122a21204942262
https://github.com/zmister2016/MrDoc/blob/v1.1.1/app_doc/views.py#L1835-L1849
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CVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Authorization Bypass Through User-Controlled Key
CWE-639
EPSS
Base Score:
0.22