CVE-2025-4542Public exploitNetwork attack vector

Cross-origin data theft via reflected CORS origin

Published May 11, 2025 · Updated May 12, 2025

Permissive CORS in Freeebird Hotel API 1.0 through 1.2 allows remote attackers to read authenticated API responses through a victim's browser. SessionInterceptor.setCorsMappings copies the Origin request header verbatim into Access-Control-Allow-Origin and also sets Access-Control-Allow-Credentials to true. A logged-in victim must visit an attacker-controlled page; the browser then sends session cookies and exposes profile data to that origin.

CVSS severity4.2
Medium
EPSS probability0.26%
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

Permissive CORS in Freeebird Hotel API 1.0 through 1.2 allows remote attackers to read authenticated API responses through a victim's browser. SessionInterceptor.setCorsMappings copies the Origin request header verbatim into Access-Control-Allow-Origin and also sets Access-Control-Allow-Credentials to true. A logged-in victim must visit an attacker-controlled page; the browser then sends session cookies and exposes profile data to that origin.

The record

CVE
CVE-2025-4542
Published
May 11, 2025
Updated
May 12, 2025
Vendor
Freeebird
Product
Hotel
Classifications
CWE-346, CWE-942, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 11, 2025CVE publishedPublication date reported by the CVE source.
  2. May 12, 2025Record 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=1.0
  2. Affected versionversion=1.1
  3. Affected versionversion=1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Freeebird · Hotelversion=1.0; version=1.1; version=1.2

Published CVSS scores

4.2NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
2.6VulDBAV:N/AC:H/Au:N/C:N/I:P/A:N
3.1VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
2.3VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/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-346Origin Validation Error
CWE-942Permissive Cross-domain Policy with Untrusted Domains
T1190Exploit Public-Facing Application

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