What is the CVSS score of CVE-2023-43039?

CVE-2023-43039 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

How to fix or mitigate CVE-2023-43039?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Openpages With Watson CVE-2023-43039

EUVD-2023-47460 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2025-07-08 psirt@us.ibm.com

XSS IBM Openpages With Watson

6.1

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-79 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Output encoding, context-aware escaping MITRE ATT&CK 2 techniques across 2 tactics: Initial Access, Execution 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	Attackers can steal session cookies, redirect users to malicious sites, deface content, or perform actions on behalf of authenticated users. With a CVSS score of 6.1 (MEDIUM), this represents a moderate risk.
Exploit ScenarioDerived	An attacker injects a JavaScript payload into a vulnerable input field. When another user views the page, the script executes in their browser, stealing their session token.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 16, 2026

IBM OpenPages with Watson 9.0 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session

Earlier versions of this analysis (1)

v1 Mar 16, 2026 - 04:21 CVSS 6.1

RemediationAI

Encode all user-supplied output contextually (HTML, JS, URL). Implement Content Security Policy (CSP) headers. Use HTTPOnly and Secure cookie flags.

Affected VersionsENISA

OpenPages with Watson 9.0

Affected Packages

euvd openpages_with_watson no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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

Technical ContextAI · show details

Cross-site scripting (XSS) allows injection of client-side scripts into web pages viewed by other users due to insufficient output encoding.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.1 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Executive ViewAI

Why It Matters

Organizations using IBM OpenPages with Watson 9.0 should be aware of moderate risk from CVE-2023-43039, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low

Compensating Controls

Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.

Threat Intelligence Overview

EPSS Score

0.0%

Top 95% exploitable

Data Quality

4 sources

Confidence: Medium

EUVD

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 MEDIUM

CISA KEV No

Public POC No

EPSS 0.0%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

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

Defer

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact

Low

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +30

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Cross-Site Scripting MEDIUM

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

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IBM OpenPages with Watson 8.1 and 8.2 could allow an authenticated user to upload a file that could execute arbitrary co

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IBM OpenPages with Watson 8.3 and 9.0 IBM OpenPages is vulnerable to an XML external entity injection (XXE) attack when

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IBM OpenPages with Watson 8.3 and 9.0 could allow a remote attacker to spoof mail server identity when using SSL/TLS sec

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6.5 Aug 22

IBM OpenPages with Watson 8.3 and 9.0 could allow authenticated users access to sensitive information through improper a

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5.4 Feb 20

IBM OpenPages with Watson 8.3 and 9.0 IBM OpenPages is vulnerable to HTML injection, caused by improper validation of us

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5.3 Feb 20

IBM OpenPages with Watson 8.3 and 9.0 may write improperly neutralized data to server log files when the tracing is enab

CVE-2024-49780 MEDIUM This Month

5.3 Feb 20

IBM OpenPages with Watson 8.3 and 9.0 IBM OpenPages could allow a remote attacker to traverse directories on the system.

CVE-2024-49783 MEDIUM This Month

5.3 Jul 08

CVE-2024-49783 is a security vulnerability (CVSS 5.3). Remediation should follow standard vulnerability management proce

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5.3 Jul 08

A security vulnerability in IBM OpenPages with Watson 8.3 and 9.0 (CVSS 5.3). Remediation should follow standard vulnera

CVE-2024-49784 MEDIUM This Month

5.3 Jul 08

IBM OpenPages with Watson 8.3 and 9.0 could provide weaker than expected security in storage of encrypted data with AE

CVE-2024-35117 MEDIUM This Month

4.4 Dec 11

IBM OpenPages with Watson 9.0 may write sensitive information, under specific configurations, in clear text to the syste

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4.3 Feb 20

IBM OpenPages with Watson 8.3 and 9.0 IBM OpenPages could allow a remote attacker to bypass security restrictions, cause

Same weakness CWE-79 – Cross-site Scripting (XSS)

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CVE-2021-25299 MEDIUM POC

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CVE-2014-2120 MEDIUM

6.1

CVE-2023-40000 HIGH POC

8.3

CVE-2016-8581 MEDIUM POC

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CVE-2013-5223 MEDIUM POC

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CVE-2025-52367 MEDIUM POC

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Same technique XSS

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CVE-2017-9248 CRITICAL POC

9.8

CVE-2013-1710 CRITICAL POC

10.0

CVE-2024-52875 HIGH POC

8.8

References

Advisories & patches

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-43039 ADVISORY https://www.ibm.com/support/pages/node/7238923

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

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