PT-2026-20586 · WordPress · Newsblogger

Lucky_Buddy · Published 2026-02-19 · Updated 2026-02-23 · CVE-2025-12821

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions NewsBlogger versions 0.2.5.6 through 0.2.6.1

Description The NewsBlogger WordPress theme is susceptible to Cross-Site Request Forgery due to inadequate nonce validation within the newsblogger install and activate plugin() function. This allows unauthenticated attackers to potentially upload arbitrary files and achieve remote code execution by deceiving a site administrator into performing an action, such as clicking a malicious link. This issue represents a regression of a previous fix.

Recommendations NewsBlogger version 0.2.5.6: Update to a newer version. NewsBlogger version 0.2.5.7: Update to a newer version. NewsBlogger version 0.2.5.8: Update to a newer version. NewsBlogger version 0.2.5.9: Update to a newer version. NewsBlogger version 0.2.6.0: Update to a newer version. NewsBlogger version 0.2.6.1: Update to a newer version.

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2025-12821

Affected Products

Newsblogger

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2025-12821 · Security Note
• https://twitter.com/CVEnew/status/2025892093139284394 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/9f33096a-dfd5-48c1-84d8-30a0faa2a7f5?source=cve · Note
• https://t.me/CVEtracker/45058 · Telegram Post
• https://twitter.com/CveTodo/status/2024529335449751835 · Twitter Post
• https://themes.trac.wordpress.org/browser/newsblogger/0.2.5.8/functions.php#L499 · Note