Operator precedence error in mall4j deletes other users' cart items
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
mall4j through 4.0 by gz-yami contains an improper authorization flaw caused by an operator precedence error in a SQL statement (CWE-783). An authenticated storefront customer can delete the cart entries of all other shoppers for off-shelf products, and the deleted entries do not return when products are restocked. A public exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
mall4j through 4.0 contains an improper authorization vulnerability that allows authenticated storefront customers to delete other shoppers' cart items through an operator precedence error in the cleanExpiryProdList SQL statement. Attackers can send one DELETE request to /p/shopCart/cleanExpiryProdList to remove every user's cart entries for off-shelf products, which do not return when products are restocked.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for mall4j.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-11 Threatist record created from CVE-2026-108691
- 2026-10-11 Alias added: GHSA-8r5r-2mmr-2vjr
- 2026-10-13 CISA SSVC decision points changed
- 2026-10-13 Priority changed: LOW → MEDIUM
References
More gz-yami vulnerabilities
- TI-2026-65359 mall4j through 4.0 Missing Authentication in Password Update Endpoint CVSS 4.0CRITICAL 9.3
- TI-2026-65360 mall4j through 4.0 Missing Authentication in Product Review Deletion CVSS 4.0MEDIUM 6.9
- TI-2026-75401 Authorization bypass in Mall4cloud exposes buyer shipping addresses CVSS 4.0HIGH 7.1
- TI-2026-65363 mall4j through 4.0 Missing Authorization in Admin User Address Endpoints CVSS 4.0HIGH 7.1
- TI-2026-65361 mall4j through 4.0 Unauthenticated Shipment Tracking Disclosure via Order Number CVSS 4.0MEDIUM 6.3
- TI-2026-70670 Information disclosure in mall4j exposes other shoppers' cart items CVSS 4.0MEDIUM 5.3
Sources
- CVE-2026-108691 · CVE Program
- CVE-2026-108691 · NVD
- FIRST EPSS
- GHSA-8r5r-2mmr-2vjr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences