Plattform
wordpress
Komponente
newsblogger
Behoben in
0.2.7
CVE-2025-12821 is a Cross-Site Request Forgery (CSRF) vulnerability discovered in the NewsBlogger WordPress theme. This flaw allows unauthenticated attackers to potentially upload arbitrary files and achieve remote code execution (RCE) by tricking a site administrator into performing malicious actions. The vulnerability affects versions 0.2.5.6 through 0.2.6.1 of the theme, and a fix is expected in a future release.
The primary impact of CVE-2025-12821 is the potential for remote code execution. An attacker can craft a malicious request that, when executed by a site administrator, will upload a file of the attacker's choosing. This uploaded file could contain a web shell, allowing the attacker to gain persistent access to the WordPress site and execute arbitrary commands on the server. The blast radius extends to the entire WordPress installation and any data stored within it. This vulnerability is similar in impact to other CSRF vulnerabilities that lead to file uploads, but the potential for RCE elevates the risk significantly. The reverted fix relates to CVE-2025-1305, indicating a history of similar issues within the theme.
CVE-2025-12821 was publicly disclosed on 2026-02-18. The vulnerability's connection to the reverted fix for CVE-2025-1305 suggests a potential for similar exploitation patterns. Currently, there are no known public proof-of-concept exploits, but the ease of CSRF exploitation means it is likely a target. The EPSS score is pending evaluation, but the potential for RCE suggests a medium to high probability of exploitation.
WordPress websites using the NewsBlogger theme in versions 0.2.5.6 through 0.2.6.1 are at risk. Sites with site administrators who frequently click on links from untrusted sources are particularly vulnerable. Shared hosting environments where multiple WordPress sites share the same server resources are also at increased risk, as a compromise on one site could potentially affect others.
• wordpress / composer / npm:
grep -r 'newsblogger_install_and_activate_plugin' /var/www/html/wp-content/plugins/• wordpress / composer / npm:
wp plugin list | grep NewsBlogger• wordpress / composer / npm:
curl -I https://your-wordpress-site.com/wp-content/plugins/newsblogger/ | grep -i 'newsblogger_install_and_activate_plugin'disclosure
Exploit-Status
EPSS
0.06% (18% Perzentil)
CISA SSVC
CVSS-Vektor
The recommended mitigation for CVE-2025-12821 is to upgrade to a patched version of the NewsBlogger WordPress theme. If upgrading is not immediately feasible, implement strict input validation and nonce verification on the newsbloggerinstallandactivateplugin() function. Consider using a WordPress security plugin that provides CSRF protection. Web Application Firewalls (WAFs) configured to detect and block suspicious file upload requests can also provide a layer of defense. Regularly review WordPress plugin installations and remove any unused or outdated plugins.
Kein bekannter Patch verfügbar. Bitte überprüfen Sie die Details der Schwachstelle eingehend und setzen Sie Schutzmaßnahmen basierend auf der Risikobereitschaft Ihres Unternehmens um. Es kann am besten sein, die betroffene Software zu deinstallieren und einen Ersatz zu finden.
Schwachstellenanalysen und kritische Warnungen direkt in deinen Posteingang.
CVE-2025-12821 is a Cross-Site Request Forgery (CSRF) vulnerability affecting the NewsBlogger WordPress theme, allowing attackers to potentially upload files and achieve remote code execution.
You are affected if your WordPress site uses the NewsBlogger theme in versions 0.2.5.6 through 0.2.6.1. Upgrade to a patched version as soon as it's available.
Upgrade to a patched version of the NewsBlogger theme. Until a patch is released, implement nonce validation and consider using a WordPress security plugin.
While no public exploits are currently known, the vulnerability's potential for RCE makes it a likely target for attackers.
Check the NewsBlogger theme developer's website or WordPress plugin repository for updates and security advisories.
Lade deine Abhängigkeitsdatei hoch und erfahre sofort, ob dich diese und andere CVEs treffen.
Lade deine Abhängigkeitsdatei hoch und erfahre sofort, ob dich diese und andere CVEs treffen.