Plattform
wordpress
Komponente
wp-responsive-slider-with-lightbox
Behoben in
1.0.1
CVE-2023-5820 is a critical Cross-Site Request Forgery (XSRF) vulnerability affecting the Thumbnail Slider With Lightbox WordPress plugin. This flaw allows unauthenticated attackers to upload arbitrary files by tricking administrators into performing actions. The vulnerability impacts version 1.0 of the plugin. A fix is available in subsequent versions.
An attacker exploiting CVE-2023-5820 can leverage XSRF to upload malicious files to a WordPress site. This could include web shells granting remote code execution, malware, or defacement files. Successful exploitation requires the attacker to convince a site administrator to click a crafted link, but the lack of nonce validation makes this significantly easier. The potential blast radius is high, as a compromised WordPress site can be used to attack other systems or steal sensitive data. This vulnerability shares similarities with other XSRF attacks where insufficient input validation leads to unauthorized actions.
CVE-2023-5820 was publicly disclosed on 2023-10-27. No public proof-of-concept (PoC) code has been released as of this writing, but the vulnerability's simplicity suggests that a PoC is likely to emerge. The vulnerability's criticality and ease of exploitation make it a potential target for automated scanning and exploitation campaigns. It is not currently listed on the CISA KEV catalog.
WordPress websites using the Thumbnail Slider With Lightbox plugin version 1.0 are at risk. Sites with administrative accounts that are frequently used or susceptible to phishing attacks are particularly vulnerable. Shared hosting environments where plugin updates are not managed by the user are also at increased risk.
• wordpress / composer / npm:
grep -r 'addedit' /var/www/html/wp-content/plugins/thumbnail-slider-with-lightbox/• generic web:
curl -I https://your-wordpress-site.com/wp-admin/admin-ajax.php?action=addedit&new_filename=malicious.php | grep -i '200 OK'disclosure
Exploit-Status
EPSS
0.10% (28% Perzentil)
CVSS-Vektor
While a patch is pending, several mitigation steps can reduce the risk. First, restrict access to the 'addedit' functionality of the Thumbnail Slider With Lightbox plugin. Implement strict user training to educate administrators about the dangers of clicking suspicious links. Consider using a WordPress security plugin with XSRF protection features. Web Application Firewalls (WAFs) can be configured to filter requests based on suspicious patterns. Monitor WordPress logs for unusual file uploads or access attempts. After a patch is released, upgrade the Thumbnail Slider With Lightbox plugin immediately and confirm by verifying the version number in the WordPress admin panel.
Aktualisieren Sie das Thumbnail Slider With Lightbox Plugin auf eine Version, die neuer als 1.0 ist. Dies behebt die CSRF-Schwachstelle, die es nicht authentifizierten Angreifern ermöglicht, beliebige Dateien hochzuladen, wenn sie einen Administrator dazu bringen, auf einen bösartigen Link zu klicken.
Schwachstellenanalysen und kritische Warnungen direkt in deinen Posteingang.
CVE-2023-5820 is a Cross-Site Request Forgery (XSRF) vulnerability in the Thumbnail Slider With Lightbox WordPress plugin, allowing attackers to upload files via forged requests.
You are affected if you are using Thumbnail Slider With Lightbox version 1.0. Check your plugin version and upgrade immediately.
Upgrade the Thumbnail Slider With Lightbox plugin to a patched version. If upgrading is not possible, implement temporary workarounds like restricting file upload permissions.
While no public exploits are currently known, the ease of exploitation makes it a potential target for attackers.
Refer to the WordPress plugin repository and the plugin developer's website for the latest security advisories and updates.
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.