Vulnerability · Published Sep 2, 2026 · Assigned by VulnCheck
CVE-2026-84799Craft CMS before 5.11.0 PII Disclosure via GraphQL User Relations
Medium 4.3
In plain English
A medium-severity security flaw in cms from craftcms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 79.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Craft CMS before 5.11.0 fails to enforce user-group scope filters on native GraphQL user relations including author, authors, uploader, draftCreator, and revisionCreator fields. Attackers with a scoped GraphQL token can query these relations to read usernames, email addresses, and full names of any content author or uploader including administrators.
Affected products (as reported)
Weakness: CWE-285 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References
- GitHub Security Advisory (GHSA-4w9w-3x96-7ghp) vendor-advisory
- VulnCheck Advisory: Craft CMS before 5.11.0 PII Disclosure via GraphQL User Relations third-party-advisory