CVE-2021-39175

 

Published at: - 30-08-2021 11:15

Last modified: - 25-10-2022 08:01

Total changes: - 6

Description

HedgeDoc is a platform to write and share markdown. In versions prior to 1.9.0, an unauthenticated attacker can inject arbitrary JavaScript into the speaker-notes of the slide-mode feature by embedding an iframe hosting the malicious code into the slides or by embedding the HedgeDoc instance into another page. The problem is patched in version 1.9.0. There are no known workarounds aside from upgrading.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://github.com/hedgedoc/hedgedoc/pull/1369
• https://github.com/hedgedoc/hedgedoc/pull/1513
• https://github.com/hedgedoc/hedgedoc/pull/1375
• https://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-j748-779h-9697

 

Keywords

NVD

 

CVE-2021-39175

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures