Webhook secret exposure in Coinsnap Bitcoin Crowdfunding plugin
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-200.
Summary
The Coinsnap Bitcoin Crowdfunding WordPress plugin through 1.2.0 does not restrict access to the secret that authenticates its payment gateway webhook, exposing it to unauthenticated users (CWE-200). An unauthenticated remote attacker can use the exposed secret to forge payment confirmations and record donations as completed, with chosen amounts, donor names and messages. The references link a public exploit.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
The Coinsnap Bitcoin Crowdfunding WordPress plugin through 1.2.0 does not restrict access to the secret used to authenticate its payment gateway webhook, disclosing it to unauthenticated users and rendering the webhook's signature check ineffective. This allows unauthenticated attackers to forge payment-confirmation notifications and record arbitrary donations as completed, with attacker-chosen amounts, donor names and messages.
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 | Coinsnap Bitcoin Crowdfunding | up to 1.2.0 | — | No fix listed | CNA |
- Coinsnap Bitcoin Crowdfunding VendorUnknown Affected up to 1.2.0 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for Coinsnap Bitcoin Crowdfunding.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-16 Threatist record created from CVE-2026-92427
- 2026-10-16 Alias added: GHSA-q2gj-9cv7-25w7
References
Sources
- CVE-2026-92427 · CVE Program
- CVE-2026-92427 · NVD
- FIRST EPSS
- GHSA-q2gj-9cv7-25w7 · 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