Plattform
wordpress
Komponente
webmention
Behoben in
5.6.3
CVE-2026-0686 describes a Server-Side Request Forgery (SSRF) vulnerability found in the Webmention plugin for WordPress. This flaw allows unauthenticated attackers to make web requests to arbitrary locations, potentially querying or modifying information from internal services. The vulnerability affects Webmention plugin versions 0 up to and including 5.6.2. A fix is available in version 5.7.0.
An attacker exploiting CVE-2026-0686 can leverage the WordPress server to make requests to internal or external resources that the server would normally not be able to access. This can be used to query internal services, potentially exposing sensitive information. It can also be used to modify data on internal systems or launch attacks against other systems on the network. The blast radius extends to any internal resources accessible from the WordPress server. This vulnerability highlights the importance of input validation and proper sanitization of user-supplied data.
CVE-2026-0686 was published on 2026-04-02. Its CVSS score of 7.2 (HIGH) indicates a significant risk. Public proof-of-concept exploits are likely to emerge. Given the widespread use of WordPress, active campaigns targeting this vulnerability are possible.
Exploit-Status
EPSS
0.05% (17% Perzentil)
CISA SSVC
CVSS-Vektor
The primary mitigation for CVE-2026-0686 is to upgrade the Webmention plugin to version 5.7.0 or later. Before upgrading, ensure compatibility with your WordPress version and other plugins. If an upgrade is not immediately possible, implement a Web Application Firewall (WAF) rule to block outbound requests to sensitive internal resources. Restrict network access to the WordPress server to only necessary ports and services. After upgrading, verify the fix by attempting to trigger an SSRF request and confirming that it is blocked.
Aktualisieren Sie auf Version 5.7.0 oder eine neuere gepatchte Version
Schwachstellenanalysen und kritische Warnungen direkt in deinen Posteingang.
SSRF (Server-Side Request Forgery) is a vulnerability that allows an attacker to make a server perform requests to arbitrary locations.
The update fixes the SSRF vulnerability and protects your website from potential attacks.
Implement additional security measures, such as restricting access to internal services and monitoring network traffic.
If you are using a version of the Webmention plugin prior to 5.7.0, you are vulnerable.
It's important to stay up-to-date with the latest security updates for the Webmention plugin and other WordPress plugins.
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.