CVE-2025-53662 is a vulnerability identified in the Jenkins IFTTT Build Notifier Plugin version 1.2 and earlier. This plugin integrates Jenkins with the IFTTT (If This Then That) service, allowing build notifications to be sent via IFTTT Maker Channel Keys. The vulnerability arises because these sensitive keys are stored unencrypted within the job's config.xml files on the Jenkins controller. As a result, any user with Item/Extended Read permissions or access to the Jenkins controller's file system can view these keys in plaintext. This exposure risks unauthorized use of the IFTTT Maker Channel, potentially allowing attackers to trigger unauthorized actions or gather sensitive information through the connected IFTTT applets. The vulnerability does not require exploitation through remote code execution or privilege escalation but leverages improper credential storage and access control weaknesses. Since Jenkins is widely used for continuous integration and deployment, the exposure of these keys can lead to indirect compromise of build processes or leakage of operational data. No CVSS score has been assigned yet, and there are no known exploits in the wild as of the publication date.

For European organizations, this vulnerability could have significant operational and security implications. Jenkins is a popular automation server used extensively across industries including finance, manufacturing, and technology sectors prevalent in Europe. Exposure of IFTTT Maker Channel Keys could allow attackers or unauthorized insiders to manipulate build notifications or trigger unintended automated workflows, potentially disrupting CI/CD pipelines or causing misinformation in build status reporting. This could lead to delays in software delivery, reduced trust in build integrity, and potential leakage of sensitive project information. Furthermore, if the IFTTT applets are linked to other enterprise systems or smart devices, attackers might leverage the compromised keys to escalate attacks or cause physical disruptions. The risk is heightened in environments where Jenkins controllers are shared among multiple teams or where access controls are not strictly enforced. Given the regulatory environment in Europe, such as GDPR, unauthorized exposure of credentials and subsequent misuse could also lead to compliance violations and reputational damage.

To mitigate this vulnerability, European organizations should: 1) Immediately upgrade the Jenkins IFTTT Build Notifier Plugin to a version that addresses this issue once available. 2) Restrict Jenkins Item/Extended Read permissions strictly to trusted users and regularly audit permission assignments to minimize exposure. 3) Limit access to the Jenkins controller file system to essential personnel only and enforce strong access controls and monitoring. 4) Rotate any exposed IFTTT Maker Channel Keys and update the Jenkins job configurations accordingly. 5) Consider encrypting sensitive credentials using Jenkins credentials plugins or external secrets management solutions rather than storing them in plaintext within config files. 6) Implement network segmentation and monitoring to detect unusual IFTTT-related activities. 7) Educate DevOps teams about secure credential management practices and the risks of storing secrets in configuration files. These steps go beyond generic advice by focusing on access control tightening, credential rotation, and secure storage practices tailored to Jenkins environments.