Vulnerability · Published Jul 28, 2026 · Assigned by GitHub_M
CVE-2026-45293WordPress Coding Standards (WordPressCS) contains an arbitrary code execution vulnerability
High 8.6
In plain English
A high-severity security flaw in WordPress-Coding-Standards from WordPress. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
WordPress Coding Standards is a set of PHP_CodeSniffer rules (sniffs) that enforce WordPress coding conventions. From 0.14.1 until 3.4.1, the WordPress.WP.EnqueuedResourceParameters sniff (active in the WordPress and WordPress-Extra rulesets) reconstructed the $ver argument passed to functions such as wp_enqueue_script() and ran it through eval() inside its is_falsy() method, so a maliciously crafted argument such as 'system'('id') would execute during a scan; as a result, running PHPCS with WordPressCS over untrusted PHP (for example a CI pipeline that lints pull requests, or a developer reviewing third-party code) could lead to arbitrary command execution on the scanning host. The WordPress-Core and WordPress-Docs rulesets are not affected. This issue is fixed in version 3.4.1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | wp-coding-standards/wpcs | 3.4.1 | GHSA-3pwp-g2mj-5p3v |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WordPress | WordPress-Coding-Standards | >= 0.14.1, < 3.4.1 |
Weakness: CWE-95 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
References
- https://github.com/WordPress/WordPress-Coding-Standards/security/advisories/GHSA-3pwp-g2mj-5p3v x_refsource_CONFIRM
- https://github.com/WordPress/WordPress-Coding-Standards/pull/2771 x_refsource_MISC
- https://github.com/WordPress/WordPress-Coding-Standards/commit/a29048d0bbef5cf25d42349c74e4072d3cbc8325 x_refsource_MISC
- https://github.com/WordPress/WordPress-Coding-Standards/releases/tag/3.4.1 x_refsource_MISC