CVE-2020-4047
In affected versions of WordPress, authenticated users with upload permissions (like authors) are able to inject JavaScript into some media file attachment pages in a certain way.
Does this matter?
Lower severity and a low EPSS score (3.27%). Track it; it rarely justifies an emergency change on its own.
Description
In affected versions of WordPress, authenticated users with upload permissions (like authors) are able to inject JavaScript into some media file attachment pages in a certain way. This can lead to script execution in the context of a higher privileged user when the file is viewed by them. 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 3.1
- 6.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
- EPSS
- 3.27% probability · 88th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-80
- Affected
- wordpress/wordpress · fedoraproject/fedora · debian/debian linux
- Source
- security-advisories@github.com
EPSS 3.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/WordPress/wordpress-develop/commit/0977c0d6b241479ecedfe19e96be69f727c3f81fPatch
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-8q2w-5m27-wm27Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00000.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00011.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/773N2ZV7QEMBGKH6FBKI6Q5S3YJMW357/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODNHXVJS25YVWYQHOCICXTLIN5UYJFDN/
- https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/Release Notes, Vendor Advisory
- https://www.debian.org/security/2020/dsa-4709Mailing List, Third Party Advisory
- https://github.com/WordPress/wordpress-develop/commit/0977c0d6b241479ecedfe19e96be69f727c3f81fPatch
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-8q2w-5m27-wm27Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00000.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00011.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/773N2ZV7QEMBGKH6FBKI6Q5S3YJMW357/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODNHXVJS25YVWYQHOCICXTLIN5UYJFDN/
- https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/Release Notes, Vendor Advisory
- https://www.debian.org/security/2020/dsa-4709Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.