CVE-2026-117563 Details
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.
A broken access control vulnerability has been identified in MrDoc versions through 1.1.1. This vulnerability allows authenticated users to alter other users' document sharing settings within the 'manage_doc_share' feature. The issue arises because the sharing updates do not verify ownership, enabling users to manipulate share settings. Exploitation involves using predictable share tokens, derived from the MD5 hash of the document ID and username, to reactivate disabled shares or eliminate access codes, thereby exposing private documents.
Users can update to MrDoc version 1.1.1 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 27, 2026CISA-ADP
Assessed Nov 2, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/zmister2016/MrDoc | [email protected] | Vendor |
| https://github.com/zmister2016/MrDoc/blob/v1.1.1/app_doc/views.py#L1835-L1849 | [email protected] | Source CodeVendor |
| https://github.com/zmister2016/MrDoc/commit/2cd13ff0659dbef9aea59d5af122a21204942262 | [email protected] | Source CodeVendor |
| https://github.com/zmister2016/MrDoc/issues/208 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://www.vulncheck.com/advisories/mrdoc-through-1.1.1-broken-access-control-via-manage-doc-share | [email protected] | Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-639 | Authorization Bypass Through User-Controlled Key | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| MrDoc | <= 1.1.1 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 2, 2026 | CVE Modified | CISA-ADP |
| Oct 27, 2026 | New CVE Received | [email protected] |