Vulnerability identifier: #VU22896

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Jetpack by WordPress.com
Web applications / Modules and components for CMS

Vendor: Automattic

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to the way Jetpack processed embed code. A remote attacker can execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Jetpack by WordPress.com: 5.1 - 7.9 beta3

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External links
http://wpvulndb.com/vulnerabilities/9955/
http://plugins.trac.wordpress.org/changeset/2196895/jetpack
http://github.com/Automattic/jetpack/commit/5e38904da8eda0bc86b29fd5298c222e362583df
http://jetpack.com/2019/11/19/jetpack-7-9-1-maintenance-security/

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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.