Cyber Resilience

CVE-2024-43442

XSS

XSS
Published
26 August 2024
Modified
15 April 2026
CVSS Score v3.1 4.9
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
EPSS Score 0.0040 33th percentile
Risk Priority 39 floored blend · peak EPSS

Summary

CVE-2024-43442 is a medium-severity Improper Filtering of Special Elements (CWE-790) vulnerability in Otrs (inferred from references). Its CVSS base score is 4.9 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Browser Session Hijacking (T1185); ranked at the 33th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

Improper Neutralization of Input done by an attacker with admin privileges ('Cross-site Scripting') in OTRS (System Configuration modules) and ((OTRS)) Community Edition allows Cross-Site Scripting (XSS) within the System Configuration targeting other admins. This issue affects: * OTRS from 7.0.X…

more

through 7.0.50 * OTRS 8.0.X * OTRS 2023.X * OTRS from 2024.X through 2024.5.X * ((OTRS)) Community Edition: 6.0.x Products based on the ((OTRS)) Community Edition also very likely to be affected

CWE(s)
CWE-790CWE-79

Related Threats

MITRE ATT&CK Enterprise Techniques

T1185 Browser Session Hijacking Collection
Adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content, modify user-behaviors, and intercept information as part of various browser session hijacking techniques.
attack.mitre.org →
T1539 Steal Web Session Cookie Credential Access
An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.
attack.mitre.org →
T1659 Content Injection Initial Access
Adversaries may gain access and continuously communicate with victims by injecting malicious content into systems through online network traffic.
attack.mitre.org →
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
attack.mitre.org →
T1059.003 Windows Command Shell Execution
Adversaries may abuse the Windows command shell for execution.
attack.mitre.org →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2019-3929Shared CWE-79
CVE-2023-6164Shared CWE-79
CVE-2023-47119Shared CWE-79
CVE-2023-36471Shared CWE-79
CVE-2023-28599Shared CWE-79
CVE-2023-4843Shared CWE-79
CVE-2023-28598Shared CWE-79
CVE-2023-22288Shared CWE-79
CVE-2023-4393Shared CWE-79
CVE-2023-32071Shared CWE-79

Affected Assets

Otrs
—
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.1.2
  • V1.3.2

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and evaluation can discover missing or incorrect input neutralization through targeted web-application tests.

SI-10 Information Input Validation good match

Input validation directly requires checking and filtering special elements in data received from upstream before further processing or forwarding.

SI-15 Information Output Filtering good match

Output filtering validates data sent downstream and can catch or correct unfiltered special elements prior to transmission.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require proper sanitization and filtering of special elements before data passes downstream.

ID.RA-01 partial match
prevents

Identifying recorded vulnerabilities can surface missing input filters during code or configuration review.

PR.PS-02 partial match
prevents

Patching and EOL replacement can remediate known XSS instances in libraries or frameworks (partial) but do nothing to enforce input neutralization in application code (none).

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect improper filtering but does not itself implement the filtering control.

A.5.6 Contact with special interest groups partial match
prevents

Knowledge exchange on emerging attack techniques and patches reduces the likelihood that cross-site scripting flaws remain unaddressed in deployed applications.

A.5.7 Threat intelligence partial match
prevents

Operational indicators of compromise for web-application attacks can be incorporated into WAF or input-filtering rules, lowering the likelihood that unsanitized data reaches the browser.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates input validation and sanitization that directly prevents improper filtering of special elements.

A.8.26 Application security requirements partial match
prevents

Application security requirements explicitly call for input validation controls that mitigate improper special-element filtering.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure system architecture and engineering principles include defensive input handling that reduces the risk of unfiltered special elements.

References