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CVE-2020-4050

CVE-2020-4050 · set-screen-option filter misuse by plugins leading to privilege escalation in WordPress

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

In affected versions of WordPress, misuse of the `set-screen-option` filter's return value allows arbitrary user meta fields to be saved. It does require an admin to install a plugin that would misuse the filter. Once installed, it can be leveraged by low privileged users. This has been patched in version 5.4.2, along with all the previously affected versions via a minor release (5.3.4, 5.2.7, 5.1.6, 5.0.10, 4.9.15, 4.8.14, 4.7.18, 4.6.19, 4.5.22, 4.4.23, 4.3.24, 4.2.28, 4.1.31, 4.0.31, 3.9.32, 3.8.34, 3.7.34).

CVSS 3.5 · Low · EPSS 1.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • wordpress-develop

    Versions
    • >= 5.4.0, < 5.4.2: Affected
    • >= 5.3.0, < 5.3.4: Affected
    • >= 5.2.0, < 5.2.7: Affected
    • >= 5.1.0, < 5.1.6: Affected
    • >= 5.0.0, < 5.0.10: Affected
    • >= 4.9.0, < 4.9.15: Affected
    • >= 4.8.0, < 4.8.14: Affected
    • >= 4.7.0, < 4.7.18: Affected
    • >= 4.6.0, < 4.6.19: Affected
    • >= 4.5.0, < 4.5.22: Affected
    • >= 4.4.0, < 4.4.23: Affected
    • >= 4.3.0, < 4.3.24: Affected
    • >= 4.2.0, < 4.2.28: Affected
    • >= 4.1.0, < 4.1.31: Affected
    • >= 4.0.0, < 4.0.31: Affected
    • >= 3.9.0, < 3.9.32: Affected
    • >= 3.8.0, < 3.8.34: Affected
    • >= 3.7.0, < 3.7.34: Affected

    No fix published

  • wordpress Debian:12

    Affected ranges
    • ECOSYSTEM: < 5.4.2+dfsg1-1

    Update to 5.4.2+dfsg1-1

  • wordpress Debian:13

    Affected ranges
    • ECOSYSTEM: < 5.4.2+dfsg1-1

    Update to 5.4.2+dfsg1-1

  • wordpress Debian:14

    Affected ranges
    • ECOSYSTEM: < 5.4.2+dfsg1-1

    Update to 5.4.2+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

Original sources

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