Answer in brief
CVE-2025-12821 records a High severity (CVSS 8.8) vulnerability in NewsBlogger <= 0.2.5.6 - 0.2.5.9 - Cross-Site Request Forgery to Arbitrary Plugin Installation. The current sources do not mark it as known exploited. The current feed maps spicethemes/NewsBlogger (generic), spicethemes/NewsBlogger (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps spicethemes/NewsBlogger (generic), spicethemes/NewsBlogger (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| spicethemes/NewsBloggergeneric | 0.2.5.6 | Not reported |
| spicethemes/NewsBloggergeneric | >=0.2.5.6 <=0.2.5.9 | Not reported |
Published upstream
Feb 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 14, 2026
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.
Quoted source text, attributed separately from HOL analysis.