CVE-2025-12821HIGH 8.8EPSS p20.1%

CVE-2025-12821CVE-2025-12821

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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS0.29% probability of exploitation · percentile 20.1% · 2026-06-18T12:00:27Z
Published2026-02-19
Last modified2026-04-15

Underlying weaknesses· 1

CWE-352

References

  1. https://themes.trac.wordpress.org/browser/newsblogger/0.2.5.8/functions.php#L499
  2. https://www.wordfence.com/threat-intel/vulnerabilities/id/9f33096a-dfd5-48c1-84d8-30a0faa2a7f5?source=cve

1

TypeTargetConfidenceTier
WeaknessCross-Site Request Forgery (CSRF)cwe-3520%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2025-1305
CVE
CVE-2025-1306
CVE
CVE-2025-1304
CVE
CVE-2025-9890
CVE
CVE-2025-8592
CVE
CVE-2026-3772
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.