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CVE-2025-54677· NVD / CVE Program· CNA Patchstack

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

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.

HighCVSS 7.2 · v3.1—Proof of concept Fix available
Published
Aug 20, 2025
Updated
Jun 17, 2026
EPSS
0.4% · 35th percentile
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Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.2 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.2
CNA · Patchstack
9.1
1.9 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
vcitaonline booking \& scheduling calendar

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • vcita online booking & scheduling calendarbefore 4.5.5

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Patchstack). Independent of NVD's CPE analysis and usually ahead of it.

  • vcita Online Booking & Scheduling Calendar for WordPress by vcita

    • up to and including 4.5.3affectedfixed in 4.5.5

Same product

vcita: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-67472WordPress Online Booking & Scheduling Calendar for WordPress by vcita plugin <= 4.5.5 - Cross Site Request Forgery (CSRF) vulnerability
    35Monitor
  • CVE-2024-37499WordPress Online Booking & Scheduling Calendar for WordPress plugin <= 4.4.2 - Local File Inclusion vulnerability
    26Monitor
  • CVE-2023-2416Online Booking & Scheduling Calendar for WordPress by vcita <= 4.5 - Cross-Site Request Forgery to Account Logout
    26Monitor
  • CVE-2024-47638WordPress Online Booking & Scheduling Calendar for WordPress plugin <= 4.4.6 - Reflected Cross Site Scripting (XSS) vulnerability
    24Monitor
  • CVE-2024-37262WordPress Online Booking & Scheduling Calendar plugin <= 4.4.2 - Reflected Cross Site Scripting (XSS) vulnerability
    24Monitor
  • CVE-2024-5791Appointment Booking and Online Scheduling <= 4.4.2 - Missing Authorization to Unauthenticated Stored Cross-Site Scripting
    24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
vcita Online Booking & Scheduling Calendar for WordPress by vcita4.5.5Vendor (CNA)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:02025-10-01

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+42 d
  3. TodaySep 30, 2026+407 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-434 · Unrestricted Upload of File with Dangerous Type

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records