Specially crafted filenames in WordPress leading to XSS
CVE-2020-11026

8.7HIGH

Key Information:

Vendor

Wordpress
Status
WordPress
Vendor
CVE Published:
30 April 2020

What is CVE-2020-11026?

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).

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Affected Version(s)

WordPress >= 5.4.0, < 5.4.1 < 5.4.0, 5.4.1

WordPress >= 5.3.0, < 5.3.3 < 5.3.0, 5.3.3

WordPress >= 5.2.0, < 5.2.6 < 5.2.0, 5.2.6

References

https://wordpress.org/support/wordpress-version/version-5...
x_refsource_MISC
https://github.com/WordPress/wordpress-develop/security/a...
x_refsource_CONFIRM
https://www.debian.org/security/2020/dsa-4677
vendor-advisoryx_refsource_DEBIAN

CVSS V3.1

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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