Welcart e-Commerce < 2.11.33 - Unauthenticated Payment Bypass via Forged Settlement Callback
Priority LOW 29Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
The Welcart e-Commerce WordPress plugin before 2.11.33 does not verify the authenticity of its convenience-store / bank-transfer settlement callback: an unauthenticated request can flip an order from unpaid to settled purely from an order number and a status flag, with no signature, amount, or origin check. Because these are pay-later methods, an attacker can mark their own unpaid order as settled and obtain fulfilment without paying.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00158 4th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Welcart e-Commerce (Unknown): 2.11.33
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Welcart e-Commerce | before 2.11.33 | 2.11.33 | Patch available | CNA |
- Welcart e-Commerce VendorUnknown Affected before 2.11.33 Fixed in 2.11.33 Patch available CNA
Remediation
- Fix · CNA Welcart e-Commerce (Unknown) Fixed in 2.11.33
Timeline
- 2026-10-02 Threatist record created from CVE-2026-15213
- 2026-10-03 Alias added: GHSA-6p56-v4j4-jm3x
References
Sources
- CVE-2026-15213 · CVE Program
- CVE-2026-15213 · NVD
- FIRST EPSS
- GHSA-6p56-v4j4-jm3x · GitHub Advisory Database · CC BY 4.0
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