CVE-2025-12821: Spicethemes Newsblogger

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

The NewsBlogger theme for WordPress is vulnerable to Cross-Site Request Forgery in versions 0.2.5.6 to 0.2.5.9. This is due to missing or incorrect nonce validation on the newsblogger_install_and_activate_plugin() function. This makes it possible for unauthenticated attackers to upload arbitrary files and achieve remote code execution via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. This is due to a reverted fix of CVE-2025-1305.

Affected products

• Spicethemes Newsblogger: from 0.2.5.6, up to and including 0.2.5.9

Published 2026-02-19. Last modified 2026-09-14.