Fluent Booking < 2.1.2 - Calendar Manager+ Sensitive Information Disclosure via Attendee Export
Priority MEDIUM 56Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
The Fluent Booking WordPress plugin before 2.1.2 does not verify ownership of the requested group_id before exporting attendee data via the export endpoint, allowing users with at least the Calendar Manager role to retrieve attendees' PII (name, email, phone, address, payment information) from calendar groups they do not own.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00398 34th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Fluent Booking (Unknown): 2.1.2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- 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 | Fluent Booking | before 2.1.2 | 2.1.2 | Patch available | CNA |
- Fluent Booking VendorUnknown Affected before 2.1.2 Fixed in 2.1.2 Patch available CNA
Remediation
- Fix · CNA Fluent Booking (Unknown) Fixed in 2.1.2
Timeline
- 2026-10-02 Threatist record created from CVE-2026-9576
- 2026-10-03 Alias added: GHSA-fvjp-rchx-7wr5
References
Sources
- CVE-2026-9576 · CVE Program
- CVE-2026-9576 · NVD
- FIRST EPSS
- GHSA-fvjp-rchx-7wr5 · 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