CSRF in Spicethemes Newsblogger
CVE-2025-12821
The NewsBlogger theme for WordPress is vulnerable to Cross-Site Request Forgery in versions 0.2.5.6 to 0.2.6.1. 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.
Vulnerability class: CSRF (Cross-Site Request Forgery)
EPSS: 0.003 (20.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Spicethemes Newsblogger — versions 0.2.5.6
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-12821?
- CVE-2025-12821 is a high-severity vulnerability in Spicethemes Newsblogger, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2026-02-19.
- How severe is CVE-2025-12821?
- High severity. CVSS v3 base score is 8.8 out of 10.