Quick answers
- Is CVE-2026-75413 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-75413 being exploited in the wild.
- How severe is CVE-2026-75413?
- High severity, with a CVSS score of 7.5, published 26 August 2026.
- Which products and versions are affected?
- RainyGao DocSys 2.02.80.
- Is there a fix for CVE-2026-75413?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-75413 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-75413?
- Check whether you run RainyGao DocSys at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
DocSys V2.02.80 is vulnerable to arbitrary file download through the downloadDocEx.do interface. The vulnerability exists in DocController.java where the application accepts targetPath and targetName parameters without proper validation or access control. The parameters are base64-decoded and directly concatenated to construct a file path, with no filtering or directory traversal protection. An attacker can craft a request with base64-encoded path traversal sequences to download any file readable by the application process. The vulnerability requires only knowledge of the target file path and does not require authentication.
Affected products
- RainyGao DocSys 2.02.80
Timeline
- 2026-06-15: disclosed: Vulnerability reported on GitHub
- 2026-08-26: advisory: CVE-2026-75413 published