Webhook Vulnerabilities: Hidden Vulnerabilities in Automation Pipelines
1 min read
Summary
Webhooks are widely used in web automation to trigger actions, updates and alerts, but they can also be the source of serious security vulnerabilities that are often overlooked.
Misconfigured webhooks can lead to server-side request forgery (SSRF), privilege escalation, data leaks and even remote code execution.
Examples of vulnerable webhooks include those that are accessible without authentication, those that do not validate event data, and those that disclose internal network information, all of which can be exploited by attackers.
In some cases, a single webhook vulnerability can affect multiple applications, as seen with the GitHub security breach in 2020, demonstrating the need for robust webhook security measures.
This article highlights the risks associated with webhooks and offers bug bounty hunters guidance on how they can be exploited, as well as tips on how to detect and mitigate these vulnerabilities.