Information disclosure in JForum



Risk Low
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2019-7550
CWE-ID CWE-200
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 JForum
Web applications / Forum & blogging software

Vendor jforum.net

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU17727

Risk: Low

CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2019-7550

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

Exploit availability: Yes

Description

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

The vulnerability exists in the create user function due to the way the software handles messages based on username validity. A remote attacker can send mass register/check/username?username= requests to access sensitive information, such as valid usernames, to enumerate within the customer environment.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

JForum: 2.1.8

CPE2.3 External links

https://www.criticalstart.com/2019/02/information-disclosure-in-jforum-2-1-x-syntax/


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. However, proof of concept for this vulnerability is available.



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