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Vulnerability · Published Apr 30, 2020 · Assigned by GitHub_M

CVE-2020-11030Cross-site scripting (XSS) in Search block in WordPress

Medium 6.4

In plain English

A medium-severity security flaw in WordPress from WordPress. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.4Medium
Exploit odds (30 days)1.4%top 26.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In affected versions of WordPress, a special payload can be crafted that can lead to scripts getting executed within the search block of the block editor. This requires an authenticated user with the ability to add content. 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12wordpress5.4.1+dfsg1-1DEBIAN-CVE-2020-11030
Debian:13wordpress5.4.1+dfsg1-1DEBIAN-CVE-2020-11030
Debian:14wordpress5.4.1+dfsg1-1DEBIAN-CVE-2020-11030
Ubuntu:22.04:LTSwordpressno fix listedUBUNTU-CVE-2020-11030
Ubuntu:24.04:LTSwordpressno fix listedUBUNTU-CVE-2020-11030
Ubuntu:25.10wordpressno fix listedUBUNTU-CVE-2020-11030
Ubuntu:26.04:LTSwordpressno fix listedUBUNTU-CVE-2020-11030
Ubuntu:26.10wordpressno fix listedUBUNTU-CVE-2020-11030

Affected products (as reported)

VendorProductVersions
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

Weakness: CWE-707 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References