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CVE-2021-39175 Detail

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/hedgedoc/hedgedoc/pull/1369 Patch  Third Party Advisory 
https://github.com/hedgedoc/hedgedoc/pull/1375 Patch  Third Party Advisory 
https://github.com/hedgedoc/hedgedoc/pull/1513 Patch  Third Party Advisory 
https://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-j748-779h-9697 Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') cwe source acceptance level NIST  
CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') GitHub, Inc.  
CWE-346 Origin Validation Error GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-39175
NVD Published Date:
08/30/2021
NVD Last Modified:
10/25/2022
Source:
GitHub, Inc.