CVE-2025-27954Network attack vector

Session hijacking via URL-exposed usertoken

Published Jun 2, 2025 · Updated Jun 11, 2025

Session-token exposure in Carestream Clinical Collaboration Platform 12.2.1.5 allows remote attackers to hijack user sessions via URLs. The default.aspx endpoint places its usertoken session credential in a GET query string, exposing it to browser history, server and proxy logs, and Referer headers. Possession of a captured URL permits account impersonation and access to patient imaging data available to the affected user's session; the researcher reports no direct code execution.

CVSS severity6.5
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Session-token exposure in Carestream Clinical Collaboration Platform 12.2.1.5 allows remote attackers to hijack user sessions via URLs. The default.aspx endpoint places its usertoken session credential in a GET query string, exposing it to browser history, server and proxy logs, and Referer headers. Possession of a captured URL permits account impersonation and access to patient imaging data available to the affected user's session; the researcher reports no direct code execution.

The record

CVE
CVE-2025-27954
Published
Jun 2, 2025
Updated
Jun 11, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, CWE-598, CAPEC-593, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 2, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 11, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-598Use of GET Request Method With Sensitive Query Strings
CAPEC-593Session Hijacking
T1539Steal Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

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Your stack

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