CVE-2025-27955Network attack vector

Session hijacking via persistent post-logout session token

Published Jun 2, 2025 · Updated Jun 11, 2025

Improper session invalidation in Carestream Clinical Collaboration Platform 12.2.1.5 allows remote attackers to reuse logged-out tokens. The logout path fails to invalidate the session token carried in the usertoken URL parameter, leaving it accepted after termination. An attacker who intercepts that URL or obtains it from browser history can impersonate the former session and access confidential application data.

CVSS severity6.5
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper session invalidation in Carestream Clinical Collaboration Platform 12.2.1.5 allows remote attackers to reuse logged-out tokens. The logout path fails to invalidate the session token carried in the usertoken URL parameter, leaving it accepted after termination. An attacker who intercepts that URL or obtains it from browser history can impersonate the former session and access confidential application data.

The record

CVE
CVE-2025-27955
Published
Jun 2, 2025
Updated
Jun 11, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-1259, T1550
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.

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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-1259Improper Restriction of Security Token Assignment
T1550Use Alternate Authentication Material

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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