CVE-2026-22483 identifies a Cross-Site Request Forgery (CSRF) vulnerability in the winkm89 teachPress learning management system, affecting all versions up to and including 9.0.12. CSRF vulnerabilities occur when a web application does not sufficiently verify that requests made to it originate from authenticated and intended users, allowing attackers to craft malicious web requests that execute unwanted actions on behalf of logged-in users. In this case, the vulnerability allows attackers to induce authenticated users to perform state-changing operations without their consent, potentially leading to unauthorized modifications or disruptions within the teachPress platform. The CVSS vector (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L) indicates that the attack can be launched remotely over the network with low complexity, requires no privileges, but does require user interaction (such as clicking a malicious link). The impact affects integrity and availability but not confidentiality, meaning data could be altered or services disrupted but not disclosed. No known exploits have been reported yet, and no patches are currently linked, suggesting organizations should monitor for updates. The vulnerability is particularly relevant to educational institutions and organizations using teachPress for course management, as unauthorized actions could compromise course content, user data integrity, or system availability.

For European organizations, the CSRF vulnerability in teachPress could lead to unauthorized changes in course content, user roles, or system settings, potentially disrupting educational services and damaging trust in digital learning platforms. Integrity impacts could include malicious modification of grades, course materials, or user permissions, while availability impacts might involve denial of service through repeated unauthorized requests. Although confidentiality is not directly affected, the disruption of educational workflows and potential data integrity issues could have significant operational consequences. Institutions relying heavily on teachPress for remote or hybrid learning environments may experience interruptions, affecting students and staff. The ease of exploitation and lack of required privileges increase the risk, especially in environments where users may be less security-aware. European organizations must consider the potential reputational damage and compliance implications, particularly under GDPR if personal data integrity is compromised.

Organizations should implement strict anti-CSRF protections such as synchronizer tokens or double-submit cookies to verify the legitimacy of requests. teachPress administrators should monitor for official patches or updates from the vendor and apply them promptly once released. In the interim, restricting access to the teachPress administrative interface via network segmentation or VPNs can reduce exposure. User education to avoid clicking suspicious links and employing web application firewalls (WAFs) with CSRF detection rules can provide additional layers of defense. Regular security assessments and penetration testing focused on web application vulnerabilities should be conducted. Logging and monitoring user actions within teachPress can help detect anomalous behavior indicative of exploitation attempts. Finally, organizations should maintain up-to-date backups to recover quickly from any integrity or availability incidents.