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hiveproHive ProHIVEPRO:78264641AA255FA587C1C24D90791011
HistoryFeb 11, 2022 - 7:36 a.m.

Critical remote code execution vulnerabilities in WordPress PHP everywhere Plugin

2022-02-1107:36:02
Hive Pro
www.hivepro.com
65

0.001 Low

EPSS

Percentile

48.5%

THREAT LEVEL: Red. For a detailed advisory, download the pdf file here Three critical remote code execution (RCE) vulnerabilities in a WordPress plugin PHP everywhere have been discovered. It is a plugin that allows web developers to utilize PHP code in pages, posts, the sidebar, or anywhere on domains that use the content management system (CMS). This plugin has been installed on over 30,000 websites. The first vulnerability which has been assigned CVE-2022-24663, allows an authorized attacker to execute shortcodes via the parse-media-shortcode AJAX call. In this case, if users are signed in then even if they have absolutely no access, such as a subscriber, a forged request parameter might be provided to run arbitrary PHP code, resulting in full website takeover. The second RCE vulnerability has been assigned CVE-2022-24664. This flaw was discovered in the way PHP Everywhere controls metaboxes, draggable edit boxes and how the software allows any user with the edit posts capability to access these functionalities. Untrusted contributor-level users might use the PHP Everywhere metabox to execute code on a site by generating a post, inserting PHP code into the PHP Everywhere metabox, and previewing the post. While this vulnerability has the same severity as the shortcode vulnerability, it is less severe because contributor-level permissions are required. The third vulnerability is tracked as CVE-2022-24665. An attacker could tamper a website's functionality by executing arbitrary PHP code through β€˜edit_posts’ permissions of PHP Everywhere Gutenberg blocks. These vulnerabilities have been fixed in version 3.0.0. Potential MITRE ATT&CK TTPs are: TA0040: Impact TA0001: Initial Access TA0002: Execution TA0007: Discovery TA0003: Persistence T1190: Exploit-public facing application T1518: Software Discovery T1565: Data Manipulation T1059: Command and Scripting Interpreter T1505: Server Software Component T1505.003: Server Software Component: Web Shell Vulnerability Details Patch Link https://downloads.wordpress.org/plugin/php-everywhere.3.0.0.zip References https://www.wordfence.com/blog/2022/02/critical-vulnerabilities-in-php-everywhere-allow-remote-code-execution/

0.001 Low

EPSS

Percentile

48.5%

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