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CVE-2026-102367

mall4j through 4.0 Insufficient Session Expiration via Token Refresh

MEDIUM
5.4
CVSS Score
Published: September 28, 2026 at 11:34 PM UTC
Updated: September 30, 2026 at 05:32 PM UTC
1 product affected across 1 vendorMALL4J

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

mall4j through 4.0 contains an insufficient session expiration vulnerability in the token refresh endpoint that fails to validate the enabled flag when issuing new sessions. Disabled user accounts can indefinitely renew their sessions through the POST /token/refresh endpoint, retaining access that account disabling was intended to remove.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

MALL4J· Gz Yami
60%
v ≤ 4.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

Exploit
Source: cverecord
https://github.com/LinYuanyi1/cve-request-poc/blob/114b3f0d149e50a7678f591bf8043399fc9ac96c/mall4j/T02_refresh_token_enabled_bypass.py
Product
Source: cverecord
https://github.com/gz-yami/mall4j
Technical Description
Source: cverecord
https://github.com/gz-yami/mall4j/blob/ffc672fc1aa4320ce02d0b93853bb456ae0a4dae/yami-shop-security/yami-shop-security-common/src/main/java/com/yami/shop/security/common/manager/TokenStore.java#L121-L130
Technical Description
Source: cverecord
https://github.com/gz-yami/mall4j/blob/ffc672fc1aa4320ce02d0b93853bb456ae0a4dae/yami-shop-security/yami-shop-security-common/src/main/java/com/yami/shop/security/common/controller/TokenController.java#L38-L44
Third Party Advisory
Source: cverecord
https://www.vulncheck.com/advisories/mall4j-through-4.0-insufficient-session-expiration-via-token-refresh

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-613

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