CVE-2026-102367

MEDIUM 5.4

mall4j through 4.0 Insufficient Session Expiration via Token Refresh

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-613
Vendor	gz-yami
Product	mall4j
Published	Sep 28, 2026

Stay Ahead of the Next One

Get instant alerts for gz-yami mall4j

Be the first to know when new medium vulnerabilities affecting gz-yami mall4j are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

gz-yami / mall4j

0 ≤ 4.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/LinYuanyi1/cve-request-poc/blob/114b3f0d149e50a7678f591bf8043399fc9ac96c/mall4j/T02_refresh_token_enabled_bypass.py github.com: https://github.com/gz-yami/mall4j github.com: 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 github.com: 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 vulncheck.com: https://www.vulncheck.com/advisories/mall4j-through-4.0-insufficient-session-expiration-via-token-refresh

Credits

Mingsheng Lin