CVE-2026-64638 PoC — WordPress 跨站脚本漏洞

Source

https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-64638.yaml

Associated Vulnerability

Title: WordPress 跨站脚本漏洞 (CVE-2026-64638)
Description:WordPress is vulnerable to a pre-auth reflected XSS vulnerability on the login screen. Via a specially crafted malicious third-party website hosted by an attacker, it is possible for this to be escalated to an RCE vulnerability with conditions outside of the attackers control. This requires successful social engineering of and explicit interaction by the target victim. This issue affects all versions of WordPress. Version 7.0.3 has been released, containing a fix for the vulnerability, and as a courtesy to users on older branches the fix has been backported to all branches back to 4.7. Discovered and responsibly disclosed by [the team at pwn.ai](https://pwn.ai/).

Description

Pre-authentication reflected XSS in WordPress wp-login.php (CVE-2026-64638).
The flaw exploits a parser differential between PHP strip_tags() and
WordPress KSES. Tags with whitespace after < (e.g. "< area") survive
strip_tags() but are normalized to valid HTML by KSES, leading to
attacker-controlled DOM elements that trigger automatic JavaScript
execution via user-profile.js. No user interaction required.
Affects all WordPress versions < 7.0.3.

File Snapshot

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