CVE-2026-9576 json
Fluent Booking < 2.1.2 - Calendar Manager+ Sensitive Information Disclosure via Attendee Export
published 4mo ago modified 4mo ago also EUVD-2026-40264
- cvss
- 4.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 34%
- public exploits
- 0
- none known
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.
Patch / fix
- Unknown Fluent Booking 2.1.2
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Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4mo ago
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-11).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/f28759e0-f15e-4014-b0d1-8b58bf412b49/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
Affected products
- Unknown Fluent Booking
Classification
- Technology feeds
References
-
wpscan.com
/vulnerability/f28759e0-f15e-4014-b0d1-8b58bf412b49/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-9576
- NVD CVE-2026-9576
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.