CVE-2023-48271: 
WordPress vulnerability analysis and mitigation

A bypass vulnerability identified as CVE-2023-48271 affects the WordPress plugin Maspik – Spam blacklist versions through 0.10.3. The vulnerability was discovered by researcher Kévin Mosbahi (Mika) and was publicly disclosed on November 21, 2023. This security issue is classified as an Authentication Bypass by Spoofing vulnerability that allows accessing functionality not properly constrained by ACLs (Patchstack).

The vulnerability has been assigned a CVSS v3.1 base score of 5.3 (Medium) with the following vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N. The issue is categorized under CWE-290 (Authentication Bypass by Spoofing) and requires no authentication to exploit (Patchstack).

The vulnerability allows malicious actors to bypass certain restrictions in the code, though the specific impact is considered to have a low severity impact and is unlikely to be exploited. The vulnerability falls under the OWASP Top 10 category of A1: Broken Access Control (Patchstack).

The vulnerability requires no authentication to exploit and can be triggered by unauthenticated users. The issue was initially reported on July 20, 2023, and an early warning was sent to Patchstack customers on November 21, 2023 (Patchstack).

The vulnerability has been fixed in version 0.10.4 of the Maspik – Spam blacklist plugin. Users are advised to update to version 0.10.4 or later to remove the vulnerability. Patchstack users have the option to enable auto-update for vulnerable plugins (Patchstack).