Open redirect in showdoc



| Updated: 2022-01-03
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-4000
CWE-ID CWE-601
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 showdoc
Web applications / Modules and components for CMS

Vendor star7th

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Open redirect

EUVDB-ID: #VU58791

Risk: Medium

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2021-4000

CWE-ID: CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

Exploit availability: No

Description

The vulnerability allows a remote attacker to redirect victims to arbitrary URL.

The vulnerability exists due to improper sanitization of user-supplied data in the "redirect" parameter on the login page. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

showdoc: 1.0.0 - 2.9.13

CPE2.3 External links

https://huntr.dev/bounties/e4d803e0-3104-432c-80b3-34bc453c8962
https://github.com/star7th/showdoc/commit/c7f10033eba5f2b5a537f9af9ba2379138e67138


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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