Quick answers
- Is CVE-2026-97877 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-97877 being exploited in the wild.
- How severe is CVE-2026-97877?
- High severity, with a CVSS score of 7.3, published 25 September 2026.
- Which products and versions are affected?
- Zhistaredu StarTraining up to 3.8.1.
- Is there a fix for CVE-2026-97877?
- 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-2026-97877 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-97877?
- Check whether you run Zhistaredu StarTraining 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 vulnerability exists in UserLoginService.createToken() which signs JWT tokens using a hardcoded 26-character secret (abcdefghijklmnopqrstuvwxyz) defined in application.yml, combined with the lack of token expiration claims. An unauthenticated attacker can forge HS512 JWT tokens offline for arbitrary user_id and company_id values, then use these tokens to access protected API endpoints such as /system/user/getUserInfo. No remediation is present in versions up to 3.8.1; the vendor did not respond to early disclosure.
Affected products
- zhistaredu StarTraining up to 3.8.1
Timeline
- 2026-09-25: disclosed: Public disclosure via GitHub advisory