# CVE-2026-102362: mall4j product review deletion auth bypass in ProdCommController

Source: https://junglewise.ai/threats/cve-2026-102362-mall4j-through-4-0-fails-to-implement-authentication-controls-on  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-29. Updated: 2026-09-29  
License: CC BY 4.0 with a link back

CVE-2026-102362 · Severity: medium · CVSS 5.3 · Published 2026-09-29

mall4j is an open-source e-commerce platform that manages product reviews and comments. The application fails to verify user identity before allowing deletion of product reviews via the /prodComm endpoint, allowing anyone on the network to delete any product review by sending a simple request with the review ID.

Technologies: [Gz-Yami Mall4j](https://junglewise.ai/threats/technologies/mall4j). Vendors: [Gz-Yami](https://junglewise.ai/threats/vendors/gz-yami).

## Quick answers

**Is CVE-2026-102362 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-102362 being exploited in the wild.

**How severe is CVE-2026-102362?** Medium severity, with a CVSS score of 5.3, published 29 September 2026.

**Which products and versions are affected?** Gz-Yami Mall4j through 4.0.

**Is there a fix for CVE-2026-102362?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-102362 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-102362?** Check whether you run Gz-Yami Mall4j at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The ProdCommController's deleteProdComm endpoint lacks authentication checks (no @PreAuthorize annotation) and does not verify review ownership, allowing unauthenticated network attackers to delete arbitrary product reviews by supplying the prodCommId parameter. The vulnerability is a missing authorization control on a DELETE API endpoint that should be restricted to authenticated users.

## Affected products

- gz-yami mall4j through 4.0

## Timeline

- 2026-09-29: disclosed

## References

- [https://github.com/gz-yami/mall4j](https://github.com/gz-yami/mall4j)
- [https://github.com/LinYuanyi1/cve-request-poc/blob/114b3f0d149e50a7678f591bf8043399fc9ac96c/mall4j/A04_prodcomm_delete_anonymous.py](https://github.com/LinYuanyi1/cve-request-poc/blob/114b3f0d149e50a7678f591bf8043399fc9ac96c/mall4j/A04_prodcomm_delete_anonymous.py)

## Related threats

- [mall4j improper authorization in cart deletion](https://junglewise.ai/threats/cve-2026-108691-mall4j-through-4-0-contains-an-improper-authorization)
- [mall4j information disclosure via cart endpoint SQL injection](https://junglewise.ai/threats/cve-2026-108690-mall4j-through-4-0-contains-an-information-disclosure)
- [mall4j insufficient session expiration in token refresh](https://junglewise.ai/threats/cve-2026-102367-mall4j-through-4-0-contains-an-insufficient-session-expiration)
- [mall4j authorization bypass in UserAddrController endpoints](https://junglewise.ai/threats/cve-2026-102365-mall4j-through-4-0-fails-to-enforce-authorization-checks-on-get)
- [mall4j session privilege escalation via sysType field](https://junglewise.ai/threats/cve-2026-102364-mall4j-through-4-0-fails-to-validate-the-systype-field-in-sa)