Vulnerability · Published Nov 25, 2021 · Assigned by mitre
CVE-2021-44223
High 8.1
In plain English
A high-severity security flaw in the wordpress package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 29.0% (higher than 98% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)29.0%top 1.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
WordPress before 5.8 lacks support for the Update URI plugin header. This makes it easier for remote attackers to execute arbitrary code via a supply-chain attack against WordPress installations that use any plugin for which the slug satisfies the naming constraints of the WordPress.org Plugin Directory but is not yet present in that directory.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | wordpress | 5.8.1+dfsg1-1 | DEBIAN-CVE-2021-44223 |
| Debian:13 | wordpress | 5.8.1+dfsg1-1 | DEBIAN-CVE-2021-44223 |
| Debian:14 | wordpress | 5.8.1+dfsg1-1 | DEBIAN-CVE-2021-44223 |