CVE-2025-15116
OpenCart Single-Use Coupon race condition
- Published
- Dec 28, 2025
- Updated
- Feb 24, 2026
- Assigning CNA
- VulDB
- Evidence observed
- Oct 4, 2026
Primary CVSS
nvd · CVSS 4.0
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XLow · next 30 days
- Percentile
- 32.7%
- Model date
- Oct 3, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
A security flaw has been discovered in OpenCart up to 4.1.0.3. Affected by this issue is some unknown functionality of the component Single-Use Coupon Handler. Performing a manipulation results in race condition. The attack may be initiated remotely. The attack's complexity is rated as high. The exploitation is known to be difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Sources
Proof-of-concept exploit and lab for an OpenCart 4.1.0.4 reward points plus Free Checkout payment bypass, letting an authenticated customer keep points and underpay orders.
Responsible use
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