Remote code execution in Automattic Jetpack by WordPress.com plugin

1) Input validation error

EUVDB-ID: #VU22896

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: N/A

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

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

CPE2.3

• cpe:2.3:a:Automattic:jetpack:5.1.1:*:*:*:*:wordpress:*:*
• cpe:2.3:a:Automattic:jetpack:5.2.2:*:*:*:*:wordpress:*:*
• cpe:2.3:a:Automattic:jetpack:5.3.1:*:*:*:*:wordpress:*:*
• cpe:2.3:a:Automattic:jetpack:5.4.1:*:*:*:*:wordpress:*:*
• cpe:2.3:a:Automattic:jetpack:5.5.2:*:*:*:*:wordpress:*:*
• cpe:2.3:a:Automattic:jetpack:5.6.2:*:*:*:*:wordpress:*:*
• cpe:2.3:a:Automattic:jetpack:5.7.2:*:*:*:*:wordpress:*:*
• cpe:2.3:a:Automattic:jetpack:5.8.1:*:*:*:*:wordpress:*:*
• cpe:2.3:a:Automattic:jetpack:5.9.1:*:*:*:*:wordpress:*:*
• cpe:2.3:a:Automattic:jetpack:6.0.1:*:*:*:*:wordpress:*:*

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/

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.