CVE-2026-17563 json
WP User Frontend < 4.3.11 - Unauthenticated Post Creation via Subscription-Gated Form
published 2026-09-02 2 mo ago modified 2026-09-03 2 mo ago also EUVD-2026-70035
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Unknown User Frontend 4.3.11
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/293b7391-ac1a-4ec5-95d1-4578391906b2/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected products
- Unknown User Frontend
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
-
wpscan.com
/vulnerability/293b7391-ac1a-4ec5-95d1-4578391906b2/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-17563
- NVD CVE-2026-17563
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.