CVE-2022-3982Public exploitNetwork attack vector

Remote code execution via unvalidated reservation upload

Published Dec 12, 2022 · Updated Apr 22, 2025

Unrestricted file upload in WpDevArt Booking calendar, Appointment Booking System before 3.2.2 allows remote attackers to execute PHP. The save_reserv function accepts a multipart file without validating its type and writes it under wp-content/uploads/booking_calendar, where PHP is executable. An unauthenticated request needs only the public page nonce, enabling arbitrary server-side code execution under the web server account.

CVSS severity9.8
Critical
EPSS probability4.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Unrestricted file upload in WpDevArt Booking calendar, Appointment Booking System before 3.2.2 allows remote attackers to execute PHP. The save_reserv function accepts a multipart file without validating its type and writes it under wp-content/uploads/booking_calendar, where PHP is executable. An unauthenticated request needs only the public page nonce, enabling arbitrary server-side code execution under the web server account.

The record

CVE
CVE-2022-3982
Published
Dec 12, 2022
Updated
Apr 22, 2025
Vendor
WpDevArt
Product
Booking calendar, Appointment Booking System
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 12, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WpDevArt · Booking calendar, Appointment Booking Systemversion=0 <3.2.2

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo