Information disclosure in HashBrown CMS

1) Information disclosure

EUVDB-ID: #VU24052

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-5840

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation in "Server/Entity/Resource/Connection.js". A remote attacker can reach a parent directory via a crafted name or ID field.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

HashBrown CMS: 0.6 - 1.3.1

CPE2.3

• cpe:2.3:a:hashbrowncms.org:hashbrown_cms:0.6:*:*:*:*:*:*:*
• cpe:2.3:a:hashbrowncms.org:hashbrown_cms:0.7:*:*:*:*:*:*:*
• cpe:2.3:a:hashbrowncms.org:hashbrown_cms:0.7.1:*:*:*:*:*:*:*

External links

https://github.com/HashBrownCMS/hashbrown-cms/compare/v1.3.1...v1.3.2
https://github.com/HashBrownCMS/hashbrown-cms/releases/tag/v1.3.2

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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