What is CVE-2026-88897?

CVE-2026-88897 is a medium-severity vulnerability in Flextype, classified under CWE-598. CVSS score: 5.9/10. Published 2026-09-10.

How severe is CVE-2026-88897?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Flextype

CVE-2026-88897

Flextype CMS through 1.0.0-alpha.3 accepts API authentication credentials through URL query string parameters in REST API routes. Attackers with access to web server, proxy, or monitoring logs can recover valid API token pairs that grant full API access.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Flextype

Weakness classification (CWE)

CWE-598

References

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

Frequently asked questions

What is CVE-2026-88897?: CVE-2026-88897 is a medium-severity vulnerability in Flextype, classified under CWE-598. CVSS score: 5.9/10. Published 2026-09-10.
How severe is CVE-2026-88897?: Medium severity. CVSS v3 base score is 5.9 out of 10.