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OpenAdvisories
High · 8.7 CVE-2020-11026 EUVD-2020-3411

Specially crafted filenames in WordPress leading to XSS

Published Apr 30, 2020 · Updated Aug 4, 2024 · Assigned by GitHub_M

Description

In affected versions of WordPress, files with a specially crafted name when uploaded to the Media section can lead to script execution upon accessing the file. This requires an authenticated user with privileges to upload files. This has been patched in version 5.4.1, along with all the previously affected versions via a minor release (5.3.3, 5.2.6, 5.1.5, 5.0.9, 4.9.14, 4.8.13, 4.7.17, 4.6.18, 4.5.21, 4.4.22, 4.3.23, 4.2.27, 4.1.30, 4.0.30, 3.9.31, 3.8.33, 3.7.33).

Affected products

VendorProductAffectedFixed
WordPress WordPress >= 5.4.0, < 5.4.1, >= 5.3.0, < 5.3.3, >= 5.2.0, < 5.2.6, >= 5.1.0, < 5.1.5, >= 5.0.0, < 5.0.9, >= 4.9.0, < 4.9.14, >= 4.8.0, < 4.8.13, >= 4.7.0, < 4.7.17, >= 4.6.0, < 4.6.18, >= 4.5.0, < 4.5.21, >= 4.4.0, < 4.4.22, >= 4.3.0, < 4.3.23, >= 4.2.0, < 4.2.27, >= 4.1.0, < 4.1.30, >= 4.0.0, < 4.0.30, >= 3… —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 wordpress 5.4.1+dfsg1-1 —
Debian 13 wordpress 5.4.1+dfsg1-1 —
Debian 12 wordpress 5.4.1+dfsg1-1 —
Debian 10 wordpress 5.0.4+dfsg1-1+deb10u2 DSA-4677-1
Debian 9 wordpress 4.7.5+dfsg-2+deb9u6 DSA-4677-1
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Debian 8 wordpress 4.1.30+dfsg-0+deb8u1 DLA-2208-1
ReleasePackageFixed inAdvisory
Ubuntu 26.10 wordpress No fix yet —
Ubuntu 26.04 LTS wordpress No fix yet —
Ubuntu 25.10 wordpress No fix yet —
Ubuntu 24.04 LTS wordpress No fix yet —
Ubuntu 22.04 LTS wordpress No fix yet —
Show 3 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS wordpress No fix yet —
Ubuntu 18.04 LTS wordpress No fix yet —
Ubuntu 16.04 LTS wordpress No fix yet —

Advisories 2

References