CVE-2022-24837 Information

Description

HedgeDoc is an open-source web-based self-hosted collaborative markdown editor. Images uploaded with HedgeDoc version 1.9.1 and later have an enumerable filename after the upload resulting in potential information leakage of uploaded documents. This is especially relevant for private notes and affects all upload backends except Lutim and imgur. This issue is patched in version 1.9.3 by replacing the filename generation with UUIDv4. If you cannot upgrade to HedgeDoc 1.9.3 it is possible to block POST requests to /uploadimage which will disable future uploads.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Reference

https://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-q6vv-2q26-j7rx https://github.com/node-formidable/formidable/issues/808 https://github.com/hedgedoc/hedgedoc/commit/9e2f9e21e904c4a319e84265da7ef03b0a8e343a

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

5.3