What is CVE-2026-91922?

CVE-2026-91922 is a medium-severity vulnerability in Steedos Steedos-Platform, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-09-15.

How severe is CVE-2026-91922?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Steedos Steedos-Platform

CVE-2026-91922

Steedos Platform through 3.0.15-beta.47 contains a reflected cross-site scripting vulnerability in the anonymous /api/page/render endpoint that fails to properly escape query parameters in inline script elements. Attackers can craft malicious links with script-terminating sequences in the schemaApi or data parameters to execute arbitrary JavaScript in victim sessions and steal X-Auth-Token credentials.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Steedos Steedos-platform

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (product)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-91922?: CVE-2026-91922 is a medium-severity vulnerability in Steedos Steedos-Platform, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-09-15.
How severe is CVE-2026-91922?: Medium severity. CVSS v3 base score is 6.1 out of 10.