Arbitrary file upload in Syntacticsinc Easync

CVE-2022-1952

The Free Booking Plugin for Hotels, Restaurant and Car Rental WordPress plugin before 1.1.16 suffers from insufficient input validation which leads to arbitrary file upload and subsequently to remote code execution. An AJAX action accessible to unauthenticated users is affected by this issue. An allowlist of valid file extensions is defined but is not used during the validation steps.

Vulnerability class: Unrestricted File Upload

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.246 (97.8th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-1952: rose from 0.235 to 0.246.

EPSS over last 30 days · oldest: 0.235 · newest: 0.246 · change: +0.011

Affected products

  • Syntacticsinc Easync
  • Free Booking Plugin For Hotels, Restaurant And Car Rental – Easync — versions 1.1.16

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-1952?
CVE-2022-1952 is a critical-severity vulnerability in Syntacticsinc Easync, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2022-07-11.
How severe is CVE-2022-1952?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-1952 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.