Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://themes.trac.wordpress.org/browser/newsblogger/0.2.5.8/functions.php#L499
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9f33096a-dfd5-48c1-84d
FAQ
What is CVE-2025-12821?
CVE-2025-12821 is a vulnerability with a CVSS score of 8.8 (HIGH). 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_act...
How severe is CVE-2025-12821?
CVE-2025-12821 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-12821?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.