CryptoCloud WordPress plugin accepts forged payment webhooks
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
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-345.
Summary
The CryptoCloud WordPress plugin from 3.0.0 through 3.0.1 does not verify the authenticity of payment notifications received by its gateway callback when the webhook secret is left at its empty default (CWE-345). An unauthenticated remote attacker can mark arbitrary orders as paid or failed without any payment being made. A public exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Description from the CNA
The CryptoCloud WordPress plugin from 3.0.0 through 3.0.1 does not verify the authenticity of the payment notifications received by its gateway callback, as the integrity check is skipped while the webhook secret is left at its empty default, allowing unauthenticated attackers to mark arbitrary orders as paid or failed without any payment being made.
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 | CryptoCloud | 3.0.0 – 3.0.1 | — | No fix listed | CNA |
- CryptoCloud VendorUnknown Affected 3.0.0 – 3.0.1 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for CryptoCloud.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Timeline
- 2026-11-03 Threatist record created from CVE-2026-103327
- 2026-11-03 Alias added: GHSA-xpq3-q6vx-4qg3
- 2026-11-04 Weakness changed · CISA ADP
- 2026-11-04 CISA SSVC decision points changed
References
Sources
- CVE-2026-103327 · CVE Program
- CVE-2026-103327 · NVD
- FIRST EPSS
- GHSA-xpq3-q6vx-4qg3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences