CVE-2025-54677: Unrestricted Upload of File with Dangerous Type vulnerability in vcita Online Booking & Scheduling Calendar fo

Q: How do I fix CVE-2025-54677?

online booking \& scheduling calendar: upgrade to 4.5.5. Exact commands for each OS are on this page.

Q: Is CVE-2025-54677 being exploited?

CVE-2025-54677 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-2025-54677 affect?

CVE-2025-54677 affects online booking \& scheduling calendar. Severity is critical (CVSS 9.1). 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 Calend

Q: How urgent is CVE-2025-54677?

Priority 41/100. Critical severity

This month

CRITICAL 9.1UPGRADE

CVE-2025-54677 is a critical-severity flaw (CVSS 9.1) affecting online booking \& scheduling calendar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.4% (top 62%)
CISA exploited list	No
Weakness	CWE-434
Published	2025-08-20
Last modified	2026-06-17

Publisher (CNA): Patchstack · Vendor: vcita

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

Am I affected?

Timeline

2025-08-20 08:15 UTCPublished CVE record published
2026-06-17 09:40 UTCUpdated Record last modified

vcita online booking \& scheduling calendar UPGRADE

Affected: < 4.5.5

Fixed in: 4.5.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy online-booking--scheduling-calendar || rpm -q online-booking--scheduling-calendar || online-booking--scheduling-calendar --version

2. UPGRADE to 4.5.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade online-booking--scheduling-calendar

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade online-booking--scheduling-calendar

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-2025-54677?

online booking \& scheduling calendar: upgrade to 4.5.5. Exact commands for each OS are on this page.

Is CVE-2025-54677 being exploited?

CVE-2025-54677 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-2025-54677 affect?

CVE-2025-54677 affects online booking \& scheduling calendar. Severity is critical (CVSS 9.1). 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 Calend

How urgent is CVE-2025-54677?

Priority 41/100. Critical severity

Software pages

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References

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