Cyber Resilience

CVE-2025-8154

Wso2 Api Manager 4.1.0 – 4.1.0.218

Published
11 May 2026
Modified
17 June 2026
Patch / advisory
CVSS Score v3.1 5.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS Score 0.0019 8th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2025-8154 is a medium-severity Injection (CWE-74) vulnerability in Wso2 Api Manager. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 8th 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 SI-10 (Information Input Validation) and SI-15 (Information Output Filtering) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

In Webhook API invocations, the component accepts user-supplied input for HTTP request headers without sufficient validation or sanitization, allowing these headers to be injected into HTTP responses. By exploiting this vulnerability, a malicious actor can inject or overwrite arbitrary HTTP…

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response headers. This can lead to various adverse effects, including the manipulation of browser caching, alteration of security-related headers, and the injection of sensitive information such as cookie values, potentially enabling session hijacking or other malicious activities.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Why these techniques?

Header injection vuln in webhook API directly enables exploitation of public-facing web application (T1190).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-29777Shared CWE-74
CVE-2026-45344Shared CWE-74
CVE-2026-44455Shared CWE-74
CVE-2026-1089Shared CWE-74
CVE-2026-29085Shared CWE-74
CVE-2026-26002Shared CWE-74
CVE-2026-41234Shared CWE-74
CVE-2026-5797Shared CWE-74
CVE-2026-31816Shared CWE-74
CVE-2025-7350Shared CWE-74

Affected Assets

wso2
api control plane
4.5.0 — 4.5.0.21
wso2
api manager
4.1.0 — 4.1.0.218 · 4.2.0 — 4.2.0.164 · 4.3.0 — 4.3.0.74
wso2
traffic manager
4.5.0 — 4.5.0.19
wso2
universal gateway
4.5.0 — 4.5.0.19

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SI-10 Information Input Validation
  • SI-15 Information Output Filtering
  • AC-4 Information Flow Enforcement
Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V1.2.1
  • V1.2.3
  • V1.2.5
  • V1.2.8

Mitigating Controls (NIST 800-53 r5) AI

prevent

Directly requires validation and sanitization of untrusted user-supplied header values before they are used in HTTP responses, blocking the CWE-74 injection vector at its source.

prevent

Mandates filtering of system output (response headers) to remove or neutralize untrusted data that could overwrite security headers or inject cookies.

prevent

Enforces information-flow rules that can restrict which header values are permitted to flow from user input into HTTP responses, limiting header-injection impact.

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 input validation and output encoding that prevent injection flaws.

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.

detects

Security testing in development catches injection vulnerabilities before release.

A.8.15 Logging partial match
detects

Logging supports detection of injection attempts but does not prevent the weakness.

detects

Monitoring activities can identify active injection attacks after they occur.

prevents

Secure development life cycle mandates input validation and output encoding that directly prevent injection flaws.

prevents

Application security requirements explicitly call for controls against injection attacks in software design.

prevents

Secure architecture principles reduce injection surfaces but do not prescribe specific neutralization techniques.

References