CVE-2026-121874: high-severity vulnerability in Post Duplicator
Post Duplicator < 3.0.18 - Admin+ Arbitrary Option Update via Unvalidated Option Name
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.2epss 0.1%
The Post Duplicator WordPress plugin before 3.0.18 does not restrict settings saves to its own options, allowing a site administrator on a multisite network who is not a Super Admin to overwrite arbitrary options of their site, including the role definitions, and so grant themselves network-management capabilities.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
Unknown · Post DuplicatorRelated CVEs — Post Duplicator
In the same product, most dangerous first.
CVE-2026-10749HIGHPost Duplicator < 3.0.15 - Contributor+ PHP Object Injection via customMetaDataEPSS 0.5%CVE-2026-111740LOWPost Duplicator < 3.0.17 - Contributor+ Draft and Private Post Title DisclosureEPSS 0.2%CVE-2026-121875HIGHPost Duplicator < 3.0.18 - Admin+ Privilege Escalation via Unvalidated Capability AssignmentEPSS 0.1%