The 1 Decembrie 1918 plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.dec.2012. This is due to missing or incorrect nonce validation on the 1-decembrie-1918/1-decembrie-1918.php page. This makes it possible for unauthenticated attackers to update settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
CVE ID: CVE-2025-3870
CVSS Base Severity: MEDIUM
CVSS Base Score: 6.1
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Vendor: olarmarius
Product: 1 Decembrie 1918
EPSS Score: 0.03% (probability of being exploited)
EPSS Percentile: 8.21% (scored less or equal to compared to others)
EPSS Date: 2025-05-24 (when was this score calculated)