CVE-2025-62993 identifies a missing authorization vulnerability in the Notification for Telegram plugin developed by rainafarai, affecting all versions up to and including 3.4.7. This vulnerability arises due to incorrectly configured access control mechanisms, which fail to properly verify whether a user has the necessary permissions before performing certain actions within the plugin. The flaw allows an attacker with low privileges (PR:L) to exploit the system remotely (AV:N) without requiring any user interaction (UI:N). The vulnerability impacts the integrity (I:L) of the system, meaning an attacker could potentially manipulate or alter notification data or related configurations, but it does not affect confidentiality or availability. The scope of the vulnerability is unchanged (S:U), indicating that the exploit affects only the vulnerable component without extending to other system components. The CVSS score of 4.3 reflects a medium severity level, consistent with the limited impact and the requirement for some level of privilege to exploit. No public exploits have been reported yet, and no patches are currently linked, suggesting that remediation may still be pending or in development. The vulnerability is particularly relevant for organizations that rely on the Notification for Telegram plugin to send automated alerts or notifications, as unauthorized modifications could disrupt alerting workflows or cause misinformation.

For European organizations, the primary impact of CVE-2025-62993 lies in the potential unauthorized modification of notification content or configurations within the Notification for Telegram plugin. This could lead to misleading alerts, missed critical notifications, or unauthorized changes that undermine operational integrity. While the vulnerability does not directly compromise sensitive data confidentiality or system availability, the integrity breach could affect decision-making processes dependent on accurate notifications. Organizations in sectors such as finance, healthcare, or critical infrastructure that use Telegram-based notifications for incident response or monitoring could experience operational disruptions or delayed reactions to security events. The medium severity rating suggests that while the threat is not immediately critical, it warrants timely attention to prevent escalation or exploitation in conjunction with other vulnerabilities. The lack of known exploits reduces immediate risk but does not eliminate the potential for future attacks, especially as threat actors often target misconfigurations in widely used plugins.

To mitigate CVE-2025-62993, European organizations should: 1) Monitor vendor communications closely for official patches or updates addressing this vulnerability and apply them promptly once available. 2) Conduct a thorough audit of access control settings within the Notification for Telegram plugin to ensure that only authorized users have permissions to perform sensitive actions. 3) Restrict plugin usage to trusted administrators and limit the number of users with elevated privileges to reduce attack surface. 4) Implement network segmentation and firewall rules to limit external access to systems running the vulnerable plugin. 5) Employ monitoring and alerting for unusual activities related to the plugin, such as unexpected configuration changes or notification anomalies. 6) Consider alternative notification mechanisms or plugins with stronger security postures if immediate patching is not feasible. 7) Educate system administrators about the risks of misconfigured access controls and enforce strict change management procedures. These steps go beyond generic advice by focusing on access control hardening, proactive monitoring, and operational best practices specific to this plugin and its usage context.