CVE-2022-1952

Free Booking Plugin for Hotels, Restaurant and Car Rental – eaSYNC <= 1.1.15 - Arbitrary File Upload

2022-06-13 00:00

Strategic Overview

Status: Patched in 1.1.16
Affected Plugin: eaSYNC Booking – Hotels, Restaurants & Car Rentals
Affected Version: <= 1.1.15
CVSS: 8.8High
Weakness type: CWE-434 · Unrestricted Upload of File with Dangerous Type
CVE: CVE-2022-1952

View all eaSYNC Booking – Hotels, Restaurants & Car Rentals vulnerabilities

At a glance

CVE-2022-1952 is a high-severity Unrestricted Upload of File with Dangerous Type vulnerability in the eaSYNC Booking WordPress plugin, affecting versions <= 1.1.15. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). The issue is fixed in version 1.1.16; sites on affected versions should update now. Disclosed June 2022, reported by cydave.

Vulnerability Overview

The Free Booking Plugin for Hotels, Restaurant and Car Rental is vulnerable to arbitrary file uploads due to missing file type validation via the ~/easync.php file in versions up to, and including, 1.1.15. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected sites server which may make remote code execution possible.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-434: Unrestricted Upload of File with Dangerous Type

Reaching this weakness in eaSYNC Booking <= 1.1.15 takes a caller who can reach the endpoint. An unrestricted file upload lets a caller store a file whose type or destination the application does not properly constrain.

If an uploaded file lands anywhere the server will execute, the flaw becomes remote code execution and the site should be treated as fully compromised. For eaSYNC Booking the fix is 1.1.16: builds <= 1.1.15 are affected, anything from 1.1.16 onward is not.

Remediation

Update to version 1.1.16, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to eaSYNC Booking: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: eaSYNC Booking 1.1.16 closes this, and updating the plugin is the step that ends it.

Firewall
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Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-1952 https://www.wordfence.com/threat-intel/vulnerabilities/id/0295711d-5da6-4e28-9151-b0ce762c7eb7 https://nvd.nist.gov/vuln/detail/CVE-2022-1952

Related records

Other vulnerabilities in eaSYNC Booking – Hotels, Restaurants & Car Rentals

CVSS Vector

8.8

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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