Vulnerability identifier: #VU52832

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-29475

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
HedgeDoc
Client/Desktop applications / Other client software

Vendor: HedgeDoc

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application. A remote authenticated attacker can read arbitrary files from the file system when exporting a note to PDF.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

HedgeDoc: 0.3.3 - 1.4.0

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External links
http://github.com/hedgedoc/hedgedoc/commit/c1789474020a6d668d616464cb2da5e90e123f65
http://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-pxxg-px9v-6qf3

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.