CVE-2026-64638

WordPress Login Reflected XSS Enabling Potential Remote Code Execution

Published Aug 7, 2026 CVSS 4.0 · 8.9 High EPSS < 1% KEV · Not listed
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/).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-6427-1 wordpress security update
History
Type Values Removed Values Added
Title WordPress Login Reflected XSS Enabling Potential Remote Code Execution
Type Values Removed Values Added
Title WordPress Login Screen Reflected XSS Potentially Escalating to Remote Code Execution
Type Values Removed Values Added
Title WordPress Login Screen Reflected XSS Potentially Escalating to Remote Code Execution
Type Values Removed Values Added
First Time appeared Wordpress
Wordpress wordpress
Vendors & Products Wordpress
Wordpress wordpress
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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/).
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 8.9, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
hackerone
Published
Updated
Aug 7, 2026, 6:26 PM
Reserved
Jul 20, 2026, 3:00 PM
Status
Awaiting Analysis
Published
Aug 7, 2026, 6:17 PM
Modified
Sep 3, 2026, 5:02 PM