CVE-2025-12821: NewsBlogger (WordPress theme) · Cross-Site Request Forgery (CSRF)
Affects NewsBlogger (WordPress theme)Source CVE Database V5
Mentioned vulnerabilities
Not known to be exploited · CVSS 8.8 High.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 33% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 19 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| spicethemesNewsBlogger | Affected
| Fixed in– |
AI-suggested
1. Immediate identification of all WordPress instances running the NewsBlogger theme, specifically versions 0.2.5.6 to 0.2.6.1, through asset inventory and vulnerability scanning. 2. 3. Implement strict nonce validation in the newsblogger_install_and_activate_plugin() function by reviewing and correcting the theme’s source code to ensure proper verification of requests. 4. Restrict administrative access to trusted IP addresses and enforce multi-factor authentication (MFA) for all WordPress administrators to reduce the risk of social engineering exploitation. 5. Conduct security awareness training focused on phishing and social engineering to reduce the likelihood of administrators clicking malicious links. 6. Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious POST requests targeting plugin installation or activation endpoints. 7. Monitor logs for unusual activity related to plugin installation or file uploads, and establish incident response procedures for rapid containment. 8. Regularly back up WordPress sites and test restoration processes to minimize downtime and data loss in case of compromise. 9. Consider isolating WordPress instances in segmented network zones to limit lateral movement if exploited. 10. Engage with the theme vendor and WordPress security communities to stay informed about updates and emerging threats related to this vulnerability.
Description
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.
References
- wordfence.com/threat-intel/vulnerabilities/id/9f33096a-dfd5-48c1-84d8-30a0faa2a7f5?source=cve (opens in a new tab)
- themes.trac.wordpress.org/browser/newsblogger/0.2.5.8/functions.php (opens in a new tab)
- themes.trac.wordpress.org/changeset?old=302341&old_path=%2Fnewsblogger%2F0.2.5.9%2Ffunctions.php&new=304663&new_path=%2Fnewsblogger%2F0.2.6%2Ffunctions.php (opens in a new tab)