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CVE-2026-30689

4.3 · MEDIUM

In Blog.Core through bcb4d17, the getinfobytoken API interface contains improper access control that leads to sensitive data exposure.

Published Mar 27, 2026CWE-863EPSS 0.33%

Overview

CVE-2026-30689 is a medium-severity vulnerability. It was published on March 27, 2026 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

In Blog.Core through bcb4d17, the getinfobytoken API interface contains improper access control that leads to sensitive data exposure. Unauthorized parties can obtain sensitive administrator account information via a valid token, threatening system security. NOTE: Blog.Admin is related front-end code that does not offer an API service.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgist.github.com/Sw3092567023/c420c6a5ee947d72aeab2b3e0ba92a40GitHubgithub.com/anjoy8/Blog.Core/blob/bcb4d17ccc71e206a0c2ff663faf4b399e19f687/Blog.Core.Api/Controllers/UserController.cs#L139-L140

How CyberStrike helps

Frequently asked questions

What is CVE-2026-30689?

CVE-2026-30689 is a medium-severity vulnerability. It was published on March 27, 2026 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-30689?

This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-30689?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-30689?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-30689 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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