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VulnerabilityPublished

CVE-2026-9576: Fluent Booking (WordPress plugin) · Information Exposure

Affects Fluent Booking (WordPress plugin)Source CVE Database V5

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Not known to be exploited · CVSS 4.9 Medium : upgrade to 2.1.2 when convenient.

Data as of 12 Nov 2026, 23:25 UTC

CVSS 3.1 base score
4.9Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 34% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.1.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Upgrade Fluent Booking (WordPress plugin) to 2.1.2.

Affected software

ProductAffectedFixed in
Fluent BookingAffected
  • <2.1.2
Fixed in
  • 2.1.2

AI-suggested

If you cannot patch yet, restrict Calendar Manager role assignments to trusted users only to limit exposure risk.

Description

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.

References

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