What is the CVSS score of CVE-2023-50839?

CVE-2023-50839 has a CVSS 3.1 base score of 9.3 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L. EPSS exploitation probability: 16.3%.

Is there a public PoC exploit available for CVE-2023-50839?

Yes, a public proof-of-concept exploit is available for CVE-2023-50839. Prioritise patching immediately. EPSS: 16.3%.

Js Help Desk CVE-2023-50839

CRITICAL

SQL Injection (CWE-89)

2023-12-28 audit@patchstack.com

SQLi Js Help Desk Wiselyhub

9.3

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-89 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Parameterized queries, prepared statements MITRE ATT&CK 2 techniques across 2 tactics: Initial Access, Persistence 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 9.3 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 16.33%.
Exploit ScenarioDerived	A remote attacker could execute arbitrary SQL commands against the database by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Emergency Immediate action required. Why: CRITICAL + active threat signals, no patch available.

No patch listed yet 16.3% exploitation probability (EPSS)

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AnalysisAI

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in JS Help Desk JS Help Desk - Best Help Desk & Support Plugin.8.1. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 16.3%.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use parameterized queries/prepared statements. Never concatenate user input into SQL. Apply least-privilege database permissions.

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 SQL Injection (CWE-89), which allows attackers to execute arbitrary SQL commands against the database. Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in JS Help Desk JS Help Desk - Best Help Desk & Support Plugin.8.1. Affected products include: Wiselyhub Js Help Desk. Version information: through 2.8.1..

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.3 CRITICAL

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

Changed

Confidentiality

High

Integrity

None

Availability

Low

DescriptionCVE.org

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in JS Help Desk JS Help Desk - Best Help Desk & Support Plugin.This issue affects JS Help Desk - Best Help Desk & Support Plugin: from n/a through 2.8.1.

Threat Intelligence Overview

EPSS Score

16.3%

Top 5% exploitable

Exploit

POC

Public exploit code exists

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS POC (1)

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 CRITICAL

CISA KEV No

Public POC Yes

EPSS 16.3%

Patch available No

Active threat Yes

Deciding rule

CRITICAL + active threat signals, no patch available

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

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +16

CVSS: +46

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

SQL Injection HIGH

SQL injection exploits the way applications construct database queries by mixing user input directly into SQL statements.

Affected Products (CPE)CVE.org

cpe:2.3:a:wiselyhub:js_help_desk:*:*:*:*:*:wordpress:*:*

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References

Advisories & patches

REF https://patchstack.com/database/vulnerability/js-support-ticket/wordpress-js-help-desk-plugin-2-8-1-unauthenticated-sql-injection-vulnerability?_s_id=cve

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GitHub PoC

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