Admidio writes session IDs and auto-login cookie values to application logs

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-47234
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-12 15:17:33 UTC
Updated2026-08-12 23:17:20 UTC
DescriptionAdmidio is an open-source user management solution. Prior to version 5.0.10, when debug logging is enabled, `Session::setCookie()` logs full cookie values and `Session::start()` logs the current session ID. In a real Admidio deployment this includes both the active session cookie and the persistent auto-login cookie. Anyone with access to the log sink can recover live bearer-style credentials from the logs. Version 5.0.10 contains a fix.

Risk And Classification

Primary CVSS: v3.1 4.4 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.001300000 probability, percentile 0.030560000 (date 2026-08-14)

Problem Types: CWE-200 | CWE-532 | CWE-200 CWE-200: Exposure of Sensitive Information to an Unauthorized Actor | CWE-532 CWE-532: Insertion of Sensitive Information into Log File

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.4MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
3.1CNADECLARED4.4MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Admidio Admidio affected < 5.0.10 Not specified

References

ReferenceSourceLinkTags
github.com/Admidio/admidio/security/advisories/GHSA-mch8-wf3h-6x88 [email protected] github.com
github.com/Admidio/admidio/blob/v5.0.9/src/Session/Entity/Session.php [email protected] github.com
github.com/Admidio/admidio/blob/v5.0.9/src/Session/Entity/Session.php [email protected] github.com
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