CVE-2026-88897

Flextype CMS through 1.0.0-alpha.3 API Token Exposure via Query String

8.2 High

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

0.56%Up 0.2 points since Sep 11, 2026

What each source reports

CVE List Score used 8.2

Flextype CMS through 1.0.0-alpha.3 API Token Exposure via Query String

Record: CVE-2026-88897
CVSS 4.0: 8.2 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-598
Updated: 2026-11-02

EUVDEUVD-2026-75542 8.2

Record: EUVD-2026-75542
CVSS 4.0: 8.2 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-pwp3-ppxm-vg9c 8.2

Flextype CMS through 1.0.0-alpha.3 accepts API authentication credentials through URL query...

Record: GHSA-pwp3-ppxm-vg9c
CVSS 4.0: 8.2 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-598
Updated: 2026-11-02

NVD 8.2

Record: CVE-2026-88897
CVSS 4.0: 8.2 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-598
Updated: 2026-11-02

OSV 8.2

Flextype CMS through 1.0.0-alpha.3 API Token Exposure via Query String

Record: CVE-2026-88897
CVSS 4.0: 8.2 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-598
Updated: 2026-11-02

Affected products

flextype

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-88897 is a high vulnerability (CVSS 8.2) in Flextype, published September 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.56%, the 46th percentile. No source names a fixed version.