Missing authorization in Nexi XPay Build lets attackers alter orders
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
The Nexi XPay Build WordPress plugin from 7.0.0 through 7.6.2 does not verify the payment result on several unauthenticated routes (CWE-862, Missing Authorization). An unauthenticated remote attacker can mark arbitrary orders as paid or failed, cancel them, and obtain order keys that expose guest buyers' details. 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
The Nexi XPay Build WordPress plugin through 7.6.2 does not verify the payment result supplied to several of its unauthenticated routes, allowing attackers to mark arbitrary orders as paid or failed, to cancel them, and to obtain order keys which expose guest buyers' details.
Why it matters now
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 | Nexi XPay Build | 7.0.0 – 7.6.2 | — | No fix listed | CNA |
- Nexi XPay Build VendorUnknown Affected 7.0.0 – 7.6.2 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for Nexi XPay Build.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-07 Threatist record created from CVE-2026-82211
- 2026-10-07 Alias added: GHSA-65w5-qcwh-f3g3
- 2026-10-07 Weakness changed · CISA ADP
- 2026-10-07 CISA SSVC decision points changed
- 2026-10-07 Priority changed: MEDIUM → LOW
- 2026-10-07 Priority changed: LOW → MEDIUM
References
Sources
- CVE-2026-82211 · CVE Program
- CVE-2026-82211 · NVD
- FIRST EPSS
- GHSA-65w5-qcwh-f3g3 · GitHub Advisory Database · CC BY 4.0
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