What is the CVSS score of CVE-2023-51405?

CVE-2023-51405 has a CVSS 3.1 base score of 8.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L. EPSS exploitation probability: 0.2%.

Bookingpress CVE-2023-51405

HIGH

Improper Authentication (CWE-287)

2024-04-24 audit@patchstack.com

Authentication Bypass Bookingpress Reputeinfosystems

8.2

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-287 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V6 - Authentication Authentication mechanism validation MITRE ATT&CK 2 techniques across 2 tactics: Defense Evasion, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 8.2 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.16%.
Exploit ScenarioDerived	A remote attacker could bypass authentication mechanisms to gain unauthorized access by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAI

Improper Authentication vulnerability in Repute Infosystems BookingPress allows Accessing Functionality Not Properly Constrained by ACLs.0.74. Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. Improper Authentication vulnerability in Repute Infosystems BookingPress allows Accessing Functionality Not Properly Constrained by ACLs.0.74. Affected products include: Reputeinfosystems Bookingpress. Version information: through 1.0.74..

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.2 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

Low

DescriptionCVE.org

Improper Authentication vulnerability in Repute Infosystems BookingPress allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects BookingPress: from n/a through 1.0.74.

Threat Intelligence Overview

EPSS Score

0.2%

Top 64% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.2%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +41

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)CVE.org

cpe:2.3:a:reputeinfosystems:bookingpress:*:*:*:*:free:wordpress:*:*

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Authenticated arbitrary file upload in the BookingPress WordPress plugin (versions through 1.0.87) enables remote code e

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The BookingPress - Appointment Booking Calendar Plugin and Online Scheduling Plugin plugin for WordPress is vulnerable t

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Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Repute Infosystems

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Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in reputeinfosystems

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The BookingPress plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file validation on the

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Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Booking & Appointm

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The Appointment Booking Calendar Plugin and Scheduling Plugin - BookingPress plugin for WordPress is vulnerable to SQL I

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5.3 Nov 30

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Repute Infosystems BookingPress - Appointmen

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5.3 Jun 11

Missing Authorization vulnerability in Repute Infosystems BookingPress.0.82. Rated medium severity (CVSS 5.3), this vuln

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4.3 Apr 07

Authorization Bypass Through User-Controlled Key vulnerability in Repute Infosystems BookingPress.0.81. Rated medium sev

Same weakness CWE-287 – Improper Authentication

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CVE-2022-40684 CRITICAL POC

9.8

CVE-2025-61882 CRITICAL POC

9.8

CVE-2020-0688 HIGH POC

8.8

CVE-2023-46805 HIGH POC

8.2

CVE-2023-35078 CRITICAL POC

9.8

CVE-2015-1187 CRITICAL POC

9.8

CVE-2024-7593 CRITICAL POC

9.8

CVE-2017-7921 CRITICAL POC

9.8

Same technique Authentication Bypass

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CVE-2015-3306 CRITICAL POC

10.0

CVE-2023-22515 CRITICAL POC

9.8

CVE-2012-4681 CRITICAL POC

9.8

CVE-2013-2465 CRITICAL POC

9.8

CVE-2011-3544 CRITICAL POC

9.8

CVE-2024-0012 CRITICAL POC

9.3

References

Advisories & patches

REF https://patchstack.com/database/vulnerability/bookingpress-appointment-booking/wordpress-bookingpress-plugin-1-0-74-booking-price-manipulation-vulnerability?_s_id=cve

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GitHub PoC

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