# CVE-2026-119558: OpenCart through 4.1.0.4 Payment Bypass via Free Checkout Reward Points

Status: published. Published: 2026-10-30. Updated: 2026-11-04.

OpenCart through 4.1.0.4 contains a business logic vulnerability that allows logged-in customers to place unpaid full-price orders by clearing reward points after selecting Free Checkout. Attackers can apply points, save Free Checkout, then submit zero points via reward.save so the confirm handler advances the order to Free Checkout status without payment.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- OpenCart / OpenCart (opencart/opencart): ≥ 0; ≤ 4.1.0.4 (affected, custom). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 2.3 (low); CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 3.1 (low); CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N; source: CNA: VulnCheck

- CVSS 4.0: 2.3 (low); CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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:X; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 3.1 (low); CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: 0.20% as of 2026-11-04; percentile 10.15%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-841

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/opencart/opencart/blob/4.1.0.4/upload/extension/opencart/catalog/controller/checkout/reward.php#L89-L94 (CNA: VulnCheck; technical-description)

- https://github.com/opencart/opencart/blob/4.1.0.4/upload/extension/opencart/catalog/controller/payment/free_checkout.php#L47-L55 (CNA: VulnCheck; technical-description)

- https://abraxaslabs.tech/research/opencart-reward-free-checkout (CNA: VulnCheck; third-party-advisory)

- https://github.com/opencart/opencart (CNA: VulnCheck; product)

- https://www.vulncheck.com/advisories/opencart-through-4.1.0.4-payment-bypass-via-free-checkout-reward-points (CNA: VulnCheck; third-party-advisory)

- https://abraxaslabs.tech/research/opencart-reward-free-checkout (disclosure@vulncheck.com)

- https://github.com/opencart/opencart (disclosure@vulncheck.com)

- https://github.com/opencart/opencart/blob/4.1.0.4/upload/extension/opencart/catalog/controller/checkout/reward.php#L89-L94 (disclosure@vulncheck.com)

- https://github.com/opencart/opencart/blob/4.1.0.4/upload/extension/opencart/catalog/controller/payment/free_checkout.php#L47-L55 (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/opencart-through-4.1.0.4-payment-bypass-via-free-checkout-reward-points (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-119558; retrieved 2026-11-04; source updated 2026-11-04

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-119558; retrieved 2026-11-05; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-119558; retrieved 2026-11-04; source updated Not reported

Revision: 11b58caee46b2d6d2c6c8086d1c3f6310d3d190220d961f39ed87e5ca1881985

Canonical: https://y2.dev/cve/CVE-2026-119558

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.