CVE-2025-4691: The Free Booking Plugin for Hotels, Restaurants and Car Rentals – eaSYNC Booking plugin for WordPress is vulne

Q: How do I fix CVE-2025-4691?

easync: upgrade to 1.3.22. Exact commands for each OS are on this page.

Q: Is CVE-2025-4691 being exploited?

CVE-2025-4691 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-4691 affect?

CVE-2025-4691 affects easync. Severity is medium (CVSS 5.3). 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 missi

Q: How urgent is CVE-2025-4691?

Priority 31/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2025-4691 is a medium-severity flaw (CVSS 5.3) affecting easync. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-639
Published	2025-05-31
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: syntacticsinc

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-05-31 12:15 UTCPublished CVE record published
2026-06-17 09:33 UTCUpdated Record last modified

syntacticsinc easync UPGRADE

Affected: < 1.3.22

Fixed in: 1.3.22

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy easync || rpm -q easync || easync --version

2. UPGRADE to 1.3.22 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade easync

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade easync

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-4691?

easync: upgrade to 1.3.22. Exact commands for each OS are on this page.

Is CVE-2025-4691 being exploited?

CVE-2025-4691 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-4691 affect?

CVE-2025-4691 affects easync. Severity is medium (CVSS 5.3). 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 missi

How urgent is CVE-2025-4691?

Priority 31/100. Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2024-9450 MEDIUM 6.5 UPGRADE The Free Booking Plugin for Hotels, Restaurants and Car Rentals WordPress plugin before 1.3.15 does not have

References

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