CVE-2026-88897Public exploitNetwork attack vector

API credential exposure via merged query parameters

Published Sep 10, 2026 · Updated Sep 10, 2026

Information exposure in Flextype CMS through 1.0.0-alpha.3 allows attackers to recover API credentials from logged REST request URLs. The Api endpoint merges getQueryParams() with the parsed request body, then uses the combined token and access_token values for authentication. Reachability requires access to web-server, proxy, or monitoring logs; each recovered token pair grants full REST API access.

CVSS severity5.9
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Information exposure in Flextype CMS through 1.0.0-alpha.3 allows attackers to recover API credentials from logged REST request URLs. The Api endpoint merges getQueryParams() with the parsed request body, then uses the combined token and access_token values for authentication. Reachability requires access to web-server, proxy, or monitoring logs; each recovered token pair grants full REST API access.

The record

CVE
CVE-2026-88897
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
Flextype
Product
Flextype
Classifications
CWE-598, T1552.001, T1550.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.0.0-alpha.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Flextype · Flextypeversion=0 <=1.0.0-alpha.3

Published CVSS scores

5.9VulnCheckCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
8.2VulnCheckCVSS: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 describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-598Use of HTTP Request With Sensitive Query String
T1552.001Unsecured Credentials: Credentials In Files
T1550.001Use Alternate Authentication Material: Application Access Token

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo