CVE-2023-27459
Deserialization of Untrusted Data vulnerability in WPEverest User Registration.This issue affects User Registration: from n/a through 2.3.2.1.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.61%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Deserialization of Untrusted Data vulnerability in WPEverest User Registration.This issue affects User Registration: from n/a through 2.3.2.1.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.61% probability · 48th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- wpeverest/user registration \& membership
- Source
- audit@patchstack.com
EPSS 0.6% since 10 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://patchstack.com/database/vulnerability/user-registration/wordpress-user-registration-plugin-2-3-2-1-authenticated-php-object-injection-vulnerability?_s_id=cveThird Party Advisory
- https://patchstack.com/database/vulnerability/user-registration/wordpress-user-registration-plugin-2-3-2-1-authenticated-php-object-injection-vulnerability?_s_id=cveThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.