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Vulnerability details: VCID-yqam-kpce-dfg7
Vulnerability ID VCID-yqam-kpce-dfg7
Aliases CVE-2021-44223
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 0.2
Risk 0.1
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
epss 0.27489 https://api.first.org/data/v1/epss?cve=CVE-2021-44223
epss 0.27489 https://api.first.org/data/v1/epss?cve=CVE-2021-44223
epss 0.27489 https://api.first.org/data/v1/epss?cve=CVE-2021-44223
epss 0.27489 https://api.first.org/data/v1/epss?cve=CVE-2021-44223
epss 0.27489 https://api.first.org/data/v1/epss?cve=CVE-2021-44223
epss 0.27489 https://api.first.org/data/v1/epss?cve=CVE-2021-44223
epss 0.27489 https://api.first.org/data/v1/epss?cve=CVE-2021-44223
epss 0.27489 https://api.first.org/data/v1/epss?cve=CVE-2021-44223
epss 0.27489 https://api.first.org/data/v1/epss?cve=CVE-2021-44223
epss 0.27489 https://api.first.org/data/v1/epss?cve=CVE-2021-44223
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-44223
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44223
No exploits are available.
There are no known vectors.
Exploit Prediction Scoring System (EPSS)
Percentile 0.96388
EPSS Score 0.27489
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T16:35:09.088706+00:00 Debian Oval Importer Import https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.0.0