#VU71367 Insecure Default Variable Initialization in Ghost - CVE-2022-47195

Vulnerability identifier: #VU71367

Vulnerability risk: Medium

CVSSv4.0: 7.4 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Green]

CVE-ID: CVE-2022-47195

CWE-ID: CWE-453

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Ghost
Web applications / Modules and components for CMS

Vendor: Ghost Foundation

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to an insecure default variable initialization in the Post Creation functionality. A remote user can inject arbitrary Javascript in posts, leading to privilege escalation to administrator via stored XSS vulnerability in the twitter field.

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

Vulnerable software versions

Ghost: 5.9.4

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External links
https://talosintelligence.com/vulnerability_reports/TALOS-2022-1686

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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.