CVE-2025-62993 identifies a missing authorization vulnerability within the Notification for Telegram plugin developed by rainafarai, affecting all versions up to and including 3.4.7. This vulnerability stems from improperly configured access control mechanisms, which fail to enforce necessary authorization checks before allowing certain operations. As a result, unauthorized users may exploit this weakness to perform actions that should be restricted, such as sending or manipulating notifications via Telegram without proper permissions. The plugin is typically used to automate or facilitate notifications through Telegram channels, often integrated into broader IT or business workflows. The lack of authorization checks means that attackers could potentially abuse the notification system to leak sensitive information, send fraudulent alerts, or disrupt communication channels. Although no known exploits have been reported in the wild, the vulnerability's presence in a widely used notification plugin poses a significant risk. The absence of a CVSS score complicates severity assessment, but the nature of the flaw—missing authorization—implies a high risk due to the potential for unauthorized access and manipulation. The vulnerability was published on December 9, 2025, with no patches currently linked, indicating that organizations must proactively assess and mitigate the risk. The vulnerability affects all versions up to 3.4.7, with no specific affected versions detailed beyond that. The issue is categorized under access control weaknesses, which are critical in maintaining system security and preventing unauthorized actions. Given the plugin's role in notification workflows, exploitation could impact confidentiality, integrity, and availability of communication channels.

For European organizations, exploitation of this vulnerability could lead to unauthorized access to notification systems, allowing attackers to send false or malicious notifications, potentially causing misinformation or operational disruption. Confidential information transmitted via Telegram notifications could be exposed or manipulated, undermining data confidentiality and integrity. Organizations relying on automated alerting for security or operational events may experience degraded trust in their notification systems, impacting incident response and business continuity. The vulnerability could also be leveraged as a foothold for further attacks within the network if notification systems are integrated with other critical infrastructure. Given the widespread use of Telegram and its notification plugins in various sectors, including finance, healthcare, and government, the impact could be significant. The absence of known exploits currently reduces immediate risk but does not eliminate the potential for future attacks. The lack of patches at the time of publication means organizations must implement interim controls to mitigate risk. Overall, the threat could disrupt communication workflows, expose sensitive data, and facilitate further compromise if exploited.

Organizations should immediately audit their use of the Notification for Telegram plugin, verifying the version in use and restricting access to trusted administrators only. Until an official patch is released, disable or uninstall the plugin if feasible to eliminate exposure. Review and tighten access control policies surrounding notification systems, ensuring that only authorized users can trigger or modify notifications. Implement network segmentation to isolate notification services from critical infrastructure and sensitive data repositories. Monitor logs and alerting systems for unusual notification activity or unauthorized access attempts. Engage with the vendor or community to track patch releases and apply updates promptly once available. Consider deploying Web Application Firewalls (WAFs) or other security controls to detect and block unauthorized requests targeting the plugin’s endpoints. Educate users and administrators about the risks associated with this vulnerability to enhance vigilance. For organizations with complex notification workflows, conduct penetration testing focused on access control weaknesses to identify and remediate similar issues proactively.