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CVE-2026-64638

CVE-2026-64638

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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/).

CVSS 8.9 · High · EPSS 0.9% · Public exploit · Fix available

Published
Updated

Stack: system

Affected products and versions

  • wordpress

    Versions
    • ≥ 0, < 7.0.3: Not affected (semver)

    No fix published

  • wordpress Debian:12

    Versions
    • 6.1.1+dfsg1-1
    • 6.1.6+dfsg1-0+deb12u1
    • 6.1.9+dfsg1-0+deb12u1
    • 6.2+dfsg1-1
    • 6.2.1+dfsg1-1
    • 6.2.2+dfsg1-1
    • 6.3+dfsg1-1
    • 6.3.1+dfsg1-1
    • 6.3.2+dfsg1-1
    • 6.4.1+dfsg1-1
    • 6.4.1+dfsg1-1.1
    • 6.4.2+dfsg1-1
    • 6.4.3+dfsg1-1
    • 6.5+dfsg1-1
    • 6.5.2+dfsg1-1
    • 6.5.3+dfsg1-1
    • 6.5.5+dfsg1-1
    • 6.6.1+dfsg1-1
    • 6.7.2+dfsg1-1
    • 6.7.2+dfsg1-1.1
    • 6.8.1+dfsg1-1
    • 6.8.3+dfsg1-1
    • 6.9+dfsg1-1
    • 6.9.4+dfsg1-1
    • 7.0+dfsg1-1
    • 7.0.2+dfsg1-1
    • 7.0.3+dfsg1-1
    • 7.1+dfsg1-1
    • 7.1.1+dfsg1-1
    • 7.1.2+dfsg1-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • wordpress Debian:13

    Versions
    • 6.8.1+dfsg1-1
    • 6.8.3+dfsg1-0+deb13u1
    • 6.8.3+dfsg1-1
    • 6.8.6+dfsg1-0+deb13u1
    Affected ranges
    • ECOSYSTEM: < 6.8.7+dfsg1-0+deb13u1

    Update to 6.8.7+dfsg1-0+deb13u1

  • wordpress Debian:14

    Versions
    • 6.8.1+dfsg1-1
    • 6.8.3+dfsg1-1
    • 6.9+dfsg1-1
    • 6.9.4+dfsg1-1
    • 7.0+dfsg1-1
    • 7.0.2+dfsg1-1
    Affected ranges
    • ECOSYSTEM: < 7.0.3+dfsg1-1

    Update to 7.0.3+dfsg1-1

  • wordpress Ubuntu:16.04:LTS

    Versions
    • 4.3+dfsg-1
    • 4.3.1+dfsg-1
    • 4.4+dfsg-1
    • 4.4.1+dfsg-1
    • 4.4.2+dfsg-1
    • 4.4.2+dfsg-1ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • wordpress Ubuntu:18.04:LTS

    Versions
    • 4.8.2+dfsg-2
    • 4.8.3+dfsg-1
    • 4.9.1+dfsg-1
    • 4.9.2+dfsg-1
    • 4.9.4+dfsg-1
    • 4.9.5+dfsg1-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • wordpress Ubuntu:20.04:LTS

    Versions
    • 5.2.2+dfsg1-1
    • 5.2.4+dfsg1-1
    • 5.3.2+dfsg1-1
    • 5.3.2+dfsg1-1ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • wordpress Ubuntu:22.04:LTS

    Versions
    • 5.7.1+dfsg1-2ubuntu1
    • 5.8.1+dfsg1-2ubuntu1
    • 5.8.2+dfsg1-1ubuntu1
    • 5.8.3+dfsg1-1ubuntu1
    • 5.8.3+dfsg1-1ubuntu1.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • wordpress Ubuntu:24.04:LTS

    Versions
    • 6.2+dfsg1-1ubuntu1
    • 6.4.3+dfsg1-1ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • wordpress Ubuntu:26.10

    Versions
    • 6.7.2+dfsg1-1.1ubuntu2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • wordpress Ubuntu:26.04:LTS

    Versions
    • 6.7.2+dfsg1-1.1ubuntu1
    • 6.7.2+dfsg1-1.1ubuntu2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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