CVE-2021-44223
This makes it easier for remote attackers to execute arbitrary code via a supply-chain attack against WordPress installations that use any plugin for which the slug satisfies the naming constraints of the WordPress.org Plugin Directory but is not yet…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 29.0%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
WordPress before 5.8 lacks support for the Update URI plugin header. This makes it easier for remote attackers to execute arbitrary code via a supply-chain attack against WordPress installations that use any plugin for which the slug satisfies the naming constraints of the WordPress.org Plugin Directory but is not yet present in that directory.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 28.98% probability · 98th percentile
- CISA KEV
- Not listed
- Affected
- wordpress/wordpress
- Source
- cve@mitre.org
References
- https://make.wordpress.org/core/2021/06/29/introducing-update-uri-plugin-header-in-wordpress-5-8/Release Notes, Vendor Advisory
- https://vavkamil.cz/2021/11/25/wordpress-plugin-confusion-update-can-get-you-pwned/Exploit, Third Party Advisory
- https://make.wordpress.org/core/2021/06/29/introducing-update-uri-plugin-header-in-wordpress-5-8/Release Notes, Vendor Advisory
- https://vavkamil.cz/2021/11/25/wordpress-plugin-confusion-update-can-get-you-pwned/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.