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VULNERABILITIES

CVE-2020-4049 Details

Description

In affected versions of WordPress, when uploading themes, the name of the theme folder can be crafted in a way that could lead to JavaScript execution in /wp-admin on the themes page. This does require an admin to upload the theme, and is low severity self-XSS. 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).

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References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/WordPress/wordpress-develop/commit/404f397b4012fd9d382e55bf7d206c1317f01148 CVEPatchThird Party Advisory
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-87h4-phjv-rm6p CVEThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00000.html CVEMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00011.html CVEMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/773N2ZV7QEMBGKH6FBKI6Q5S3YJMW357/ CVE

see all 16 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')[email protected]
CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)[email protected]

Affected Products

ProductVersions
wordpress wordpress
>= 3.7, < 3.7.34
>= 3.8, < 3.8.34
>= 3.9, < 3.9.32
>= 4.0, < 4.0.31
>= 4.1, < 4.1.31

CPE

  • cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
fedoraproject fedora
31
32

CPE

  • cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
8.0
9.0
10.0

CPE

  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

12 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2020-4049
NVD Published Date:
Jun 12, 2020
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]