Eventin < 4.1.19 - Unauthenticated Order Completion Without Payment via order_token
Priority LOW 30CWE-862Published · Updated
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-862.
Summary
The Eventin WordPress plugin before 4.1.19 does not properly restrict which changes a guest checkout token is allowed to authorise on an order, allowing unauthenticated users to mark their own unpaid order as completed and be issued a valid paid ticket with no payment taken.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00304 23rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Eventin (Unknown): 4.1.19
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 | Eventin | before 4.1.19 | 4.1.19 | Patch available | CNA |
- Eventin VendorUnknown Affected before 4.1.19 Fixed in 4.1.19 Patch available CNA
Remediation
- Fix · CNA Eventin (Unknown) Fixed in 4.1.19
Timeline
- 2026-10-02 Threatist record created from CVE-2026-77694
- 2026-10-03 Alias added: GHSA-rh58-q787-q9gq
References
Sources
- CVE-2026-77694 · CVE Program
- CVE-2026-77694 · NVD
- FIRST EPSS
- GHSA-rh58-q787-q9gq · GitHub Advisory Database · CC BY 4.0
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