CVE-2025-53677 identifies a vulnerability in the Jenkins Xooa Plugin (version 0.0.7 and earlier) where the Xooa Deployment Token is displayed in plaintext on the global configuration form instead of being masked. This token is a sensitive credential used to authenticate deployments to the Xooa platform, which integrates blockchain capabilities into Jenkins pipelines. The failure to mask this token increases the risk that an attacker with network access to the Jenkins server's configuration interface can observe and capture the token. The vulnerability is classified under CWE-256 (Plaintext Storage of a Password) and has a CVSS v3.1 base score of 5.3, indicating medium severity. The vector string (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) shows that the attack can be performed remotely over the network with low attack complexity, no privileges, and no user interaction required. The impact is limited to confidentiality, as the token exposure does not directly affect system integrity or availability. No patches or exploits are currently reported, but the risk lies in potential unauthorized use of the deployment token to perform unintended deployments or gain further access. The vulnerability affects all Jenkins instances using the vulnerable Xooa Plugin versions, particularly those exposing the global configuration form to untrusted networks or users.

For European organizations, the exposure of the Xooa Deployment Token can lead to unauthorized access to deployment pipelines, potentially allowing attackers to deploy malicious code or manipulate blockchain-related workflows integrated via Xooa. While the vulnerability does not directly compromise system integrity or availability, the confidentiality breach can facilitate further attacks or data leakage. Organizations relying on Jenkins for continuous integration and deployment, especially those incorporating blockchain or smart contract deployments through Xooa, face increased risk. The impact is more pronounced in environments where Jenkins configuration interfaces are accessible beyond trusted internal networks or where access controls are weak. This could lead to reputational damage, compliance issues under GDPR if sensitive data is indirectly exposed, and operational disruptions if unauthorized deployments occur.

1. Immediately restrict access to the Jenkins global configuration interface to trusted administrators only, using network segmentation, VPNs, or firewall rules. 2. Monitor and audit access logs for any unusual access patterns to the Jenkins configuration pages. 3. Until an official patch is released, consider removing or disabling the Xooa Plugin if it is not essential. 4. If the plugin is necessary, avoid exposing Jenkins management interfaces to public or untrusted networks. 5. Rotate the Xooa Deployment Token if it has been potentially exposed to ensure compromised tokens cannot be reused. 6. Implement strict role-based access control (RBAC) within Jenkins to limit who can view or modify plugin configurations. 7. Stay updated with Jenkins security advisories and apply patches promptly once available. 8. Educate DevOps teams about the risks of exposing sensitive tokens and the importance of secure credential handling.