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Vulnerability · Published Jun 12, 2020 · Assigned by GitHub_M

CVE-2020-4047Authenticated XSS via media attachment page in WordPress

Medium 6.8

In plain English

A medium-severity security flaw in wordpress-develop from WordPress. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.3% (higher than 88% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)3.3%top 11.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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).

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12wordpress5.4.2+dfsg1-1DEBIAN-CVE-2020-4047
Debian:13wordpress5.4.2+dfsg1-1DEBIAN-CVE-2020-4047
Debian:14wordpress5.4.2+dfsg1-1DEBIAN-CVE-2020-4047
Ubuntu:22.04:LTSwordpressno fix listedUBUNTU-CVE-2020-4047

Affected products (as reported)

VendorProductVersions
WordPress wordpress-develop >= 5.4.0, < 5.4.2>= 5.3.0, < 5.3.4>= 5.2.0, < 5.2.7>= 5.1.0, < 5.1.6>= 5.0.0, < 5.0.10>= 4.9.0, < 4.9.15>= 4.8.0, < 4.8.14>= 4.7.0, < 4.7.18

Weakness: CWE-80 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N

References