CVE-2025-24973

Session hijacking via uncleared logout cookie

Published Feb 11, 2025 · Updated Feb 11, 2025

Insufficient session expiration in Concorde before 12.25Q1.1 allows local users to steal authentication tokens from a shared browser. The client signout function removes the account from localStorage but leaves the token cookie intact, so logout does not clear the reusable credential. Access to the same browser profile after a victim logs out is required; reuse of an administrator's token grants that account's privileges.

CVSS severity9.3
Critical
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient session expiration in Concorde before 12.25Q1.1 allows local users to steal authentication tokens from a shared browser. The client signout function removes the account from localStorage but leaves the token cookie intact, so logout does not clear the reusable credential. Access to the same browser profile after a victim logs out is required; reuse of an administrator's token grants that account's privileges.

The record

CVE
CVE-2025-24973
Published
Feb 11, 2025
Updated
Feb 11, 2025
Vendor
nexryai
Product
Concorde
Classifications
CWE-613, T1539
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 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?

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

  1. Affected versionversion=< 12.25Q1.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

nexryai · Concordeversion=< 12.25Q1.1

Published CVSS scores

9.3GitHubCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-613Insufficient Session Expiration
T1539Steal Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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