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Free Booking Plugin for Hotels, Restaurants and Car Rentals – eaSYNC Booking <= 1.3.21 — Insecure Direct Object Reference to Sensitive Information Exposure

CVE-2025-4691Published · Updated

Action summary

Affected: ≤1.3.21Update to 1.3.22 or newer

All remediation steps
Watch plugin
Severity
Medium5.3
CVSS
5.3
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:L Confidentiality
Low
I:N Integrity
None
A:N Availability
None
Weakness
CWE-639 Authorization Bypass Through User-Controlled Key
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

eaSYNC Booking – Hotels, Restaurants & Car Rentals easync-booking

  1. Affected≤ 1.3.21
  2. Patched in1.3.22

Update to 1.3.22 or newer.

You are affected if you run ≤ 1.3.21. Version 1.3.22 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under eaSYNC Booking – Hotels, Restaurants & Car Rentals.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 1.3.22, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch eaSYNC Booking – Hotels, Restaurants & Car Rentals to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to cucumbersalad.

The Free Booking Plugin for Hotels, Restaurants and Car Rentals – eaSYNC Booking plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.3.21 via the 'view_request_details' due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to view the details of any booking request. The vulnerability was partially patched in versions 1.3.18 and 1.3.21.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in eaSYNC Booking – Hotels, Restaurants & Car Rentals

All 8
More vulnerabilities in eaSYNC Booking – Hotels, Restaurants & Car Rentals
SeverityVulnerabilityCVEPublished
Medium5.3Missing Authorization
≤1.3.30Update to 1.3.31
CVE-2026-103304
Medium4.3Missing Authorization
≤1.3.19Update to 1.3.21
CVE-2025-32219
Medium6.1Cross-Site Request Forgery
≤1.3.14Update to 1.3.15
CVE-2024-9450
Medium6.1Reflected Cross-Site Scripting
≤1.3.11Update to 1.3.12
CVE-2023-38384
Medium6.1Reflected Cross-Site Scripting via fs_request_get
≤1.9.2No patch available
CVE-2023-33999

Timeline

  1. CVE published

    Severity medium, CVSS 5.3

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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