Quick answers
- Is CVE-2026-105389 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-105389 being exploited in the wild.
- How severe is CVE-2026-105389?
- Medium severity, with a CVSS score of 6.3, published 5 October 2026.
- Which products and versions are affected?
- Feelec-Yishu Feelcrm-Os 1.0.0.
- Is there a fix for CVE-2026-105389?
- 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-2026-105389 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-105389?
- Check whether you run Feelec-Yishu Feelcrm-Os 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
The UploadController.class.php UploadTicketFile endpoint fails to properly validate uploaded files, allowing authenticated users to bypass file type restrictions via manipulation of the cmd parameter. This unrestricted file upload vulnerability permits execution of arbitrary PHP code on the server with the privileges of the web application.
Affected products
- feelec-yishu FeelCRM-OS 1.0.0
Timeline
- 2026-10-05: disclosed: Public disclosure on GitHub issue #7
- 2026-10-05: advisory