CVE-2025-54677

WordPress Online Booking & Scheduling Calendar for WordPress by vcita Plugin <= 4.5.3 - Arbitrary File Upload Vulnerability

9.1 CriticalPublic exploit

Unrestricted Upload of File with Dangerous Type vulnerability in vcita Online Booking & Scheduling Calendar for WordPress by vcita meeting-scheduler-by-vcita allows Using Malicious Files.This issue affects Online Booking & Scheduling Calendar for WordPress by vcita: from n/a through <= 4.5.3.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.44%Up 0.4 points since Aug 20, 2025

What each source reports

CVE List Score used 9.1

WordPress Online Booking & Scheduling Calendar for WordPress by vcita Plugin <= 4.5.3 - Arbitrary File Upload Vulnerability

Record: CVE-2025-54677
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness: CWE-434
Updated: 2026-11-02

EUVDEUVD-2025-28563 9.1

Record: EUVD-2025-28563
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-gfhw-6rv5-52pq 9.1

Unrestricted Upload of File with Dangerous Type vulnerability in vcita Online Booking &...

Unrestricted Upload of File with Dangerous Type vulnerability in vcita Online Booking & Scheduling Calendar for WordPress by vcita allows Using Malicious Files. This issue affects Online Booking & Scheduling Calendar for WordPress by vcita: from n/a through 4.5.3.

Record: GHSA-gfhw-6rv5-52pq
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness: CWE-434
Updated: 2026-11-02

NVD 9.1

Record: CVE-2025-54677
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-434
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
PoC in GitHub	quetuan03/CVE-2025-54677	2025-10-01

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-54677 is a critical vulnerability (CVSS 9.1) in Vcita Online Booking & Scheduling Calendar For Wordpress By Vcita, published August 20, 2025. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.44%, the 38th percentile. No source names a fixed version.