iK Pay Gateway WordPress plugin accepts forged payment callbacks
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-287.
Summary
The Online Payments with iK Pay Gateway WordPress plugin before 3.0.4 does not properly verify the authenticity of its payment gateway callback on a default installation (CWE-287). An unauthenticated remote attacker can send a forged successful payment notification that marks arbitrary orders as paid without any payment, or marks unprocessed orders as failed. An exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
The Online Payments with iK Pay Gateway WordPress plugin before 3.0.4 does not properly verify the authenticity of its payment gateway callback on a default installation, allowing unauthenticated attackers to forge a successful payment notification and mark arbitrary orders as paid without any payment being made, and to mark arbitrary unprocessed orders as failed.
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 | Online Payments with iK Pay Gateway | before 3.0.4 | 3.0.4 | Patch available | CNA |
- Online Payments with iK Pay Gateway VendorUnknown Affected before 3.0.4 Fixed in 3.0.4 Patch available CNA
Remediation
Update the Online Payments with iK Pay Gateway WordPress plugin to version 3.0.4, which contains the fix.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA Online Payments with iK Pay Gateway (Unknown) Fixed in 3.0.4
Timeline
- 2026-10-26 Threatist record created from CVE-2026-103306
- 2026-10-26 CVSS score added · CISA ADP
- 2026-10-26 Weakness changed · CISA ADP
- 2026-10-26 CISA SSVC decision points changed
- 2026-10-27 Alias added: GHSA-xw2m-gwmp-p7g6
References
Sources
- CVE-2026-103306 · CVE Program
- CVE-2026-103306 · NVD
- FIRST EPSS
- GHSA-xw2m-gwmp-p7g6 · GitHub Advisory Database · CC BY 4.0
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