What is CVE-2025-4691?

CVE-2025-4691 is a medium-severity vulnerability in Syntactics Easync Booking – Hotels, Restaurants & Car Rentals, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2025-05-31.

How severe is CVE-2025-4691?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2025-4691 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Syntactics Easync Booking – Hotels, Restaurants & Car Rentals

CVE-2025-4691

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 miss…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.003 (19.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Syntactics Easync Booking – Hotels, Restaurants & Car Rentals — versions 0
Syntacticsinc Easync

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

security@wordfence.com (Third Party Advisory)
security@wordfence.com (Product)
security@wordfence.com (Patch)
security@wordfence.com (Patch)
security@wordfence.com (Patch)

Frequently asked questions

What is CVE-2025-4691?: CVE-2025-4691 is a medium-severity vulnerability in Syntactics Easync Booking – Hotels, Restaurants & Car Rentals, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2025-05-31.
How severe is CVE-2025-4691?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2025-4691 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.