CVE-2026-17563: medium-severity vulnerability in User Frontend
WP User Frontend < 4.3.11 - Unauthenticated Post Creation via Subscription-Gated Form
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.3epss 0.3%
The User Frontend WordPress plugin before 4.3.11 does not enforce its subscription-purchase requirement when processing frontend post submissions, only when rendering the form, allowing unauthenticated users to create and, depending on the form's configuration, immediately publish posts through forms restricted to paying subscribers.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected products
Unknown · User Frontendpublic PoCs found — 1
cve_referencewpscan.com/vulnerability/293b7391-ac1a-4ec5-95d1-4578391906b2/unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — User Frontend
In the same product, most dangerous first.
CVE-2026-14558HIGHWP User Frontend < 4.3.10 - Editor+ PHP Object Injection via AI Form BuilderEPSS 0.8%CVE-2026-19116HIGHWP User Frontend < 4.3.11 - Subscriber+ PHP Object Injection via Frontend Post Edit FormEPSS 0.7%CVE-2026-14567MEDIUMWP User Frontend < 4.3.10 - Unauthenticated User Email and Phone Disclosure via User DirectoryEPSS 0.3%CVE-2026-75823HIGHWP User Frontend 3.5.29 - 4.3.11 - Unauthenticated Privilege Escalation via Registration Role EncryptionEPSS 0.3%CVE-2026-75824MEDIUMWP User Frontend 2.5.8 - 4.3.11 - Unauthenticated Account Creation with Registration DisabledEPSS 0.2%CVE-2026-115277MEDIUMWP User Frontend < 4.3.14 - Reflected XSS via 'field_attr' ParameterEPSS 0.2%