CVE-2026-5798
CVE-2026-5798 is a high-severity vulnerability with a CVSS 4.0 base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.
Key facts
- Severity: High (CVSS 4.0 base score 7.1)
- EPSS exploit prediction: 0% (11th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-30269
- Weakness: CWE-639
- Published:
- Last modified:
Description
Unsafe object reference (IDOR) in Stel Order v3.25.1 and earlier versions, specifically in the ‘/app/FrontController’ endpoint, through manipulation of the ‘employeeID’ parameter. An authenticated attacker could exploit this vulnerability to access information about any employee (first names, last names, roles, job titles, and vacation records, among others) by modifying that identifier in requests sent to the server.
Frequently asked questions
- What is CVE-2026-5798?
- Unsafe object reference (IDOR) in Stel Order v3.25.1 and earlier versions, specifically in the ‘/app/FrontController’ endpoint, through manipulation of the ‘employeeID’ parameter. An authenticated attacker could exploit this vulnerability to access information about any employee (first names, last names, roles, job titles, and vacation records, among others) by modifying that identifier in requests sent to the server.
- How severe is CVE-2026-5798?
- CVE-2026-5798 has a CVSS 4.0 base score of 7.1, rated high severity.
- Is CVE-2026-5798 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-5798?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-5798 have an EU (EUVD) identifier?
- Yes. CVE-2026-5798 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30269.
- When was CVE-2026-5798 published?
- CVE-2026-5798 was published on 2026-05-14 and last updated on 2026-06-17.
References
Other CWE-639 (Authorization Bypass Through User-Controlled Key (IDOR)) vulnerabilities
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