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NVD / CVE Program· CNA WSO2

CVE-2025-8154: HTTP Header Injection via Webhook API in Multiple WSO2 Products Allows Response Header Manipulation

Noroxi assessment

Priority: Monitor (action score 30/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.18% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.
  • Severity is disputed: the assigning authority (CNA) scores it 5.3, NVD 7.5.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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 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.

HighCVSS 7.5 · v3.1—No exploit No fix recorded
Published
May 11, 2026
Updated
Oct 14, 2026
EPSS
0.1% · 8th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.5
CNA · WSO2
5.3
2.2 point gap

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-8154

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
wso2api control plane
wso2api manager
wso2traffic manager
wso2universal gateway

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • wso2 api control plane4.5.0 and later · before 4.5.0.21
  • wso2 api manager4.1.0 and later · before 4.1.0.218
  • wso2 api manager4.2.0 and later · before 4.2.0.164
  • wso2 api manager4.3.0 and later · before 4.3.0.74
  • wso2 api manager4.4.0 and later · before 4.4.0.38
  • wso2 api manager4.5.0 and later · before 4.5.0.20
  • wso2 traffic manager4.5.0 and later · before 4.5.0.19
  • wso2 universal gateway4.5.0 and later · before 4.5.0.19

Versions reported by the vendor

Affected version ranges reported by the assigning authority (WSO2). Independent of NVD's CPE analysis and usually ahead of it.

  • WSO2 WSO2 API Control Plane

    • 4.5.0 and later · before 4.5.0.21affected

  • WSO2 WSO2 API Manager

    • before 4.1.0unknown
    • 4.1.0 and later · before 4.1.0.218affected
    • 4.2.0 and later · before 4.2.0.164affected
    • 4.3.0 and later · before 4.3.0.74affected
    • 4.4.0 and later · before 4.4.0.38affected
    • 4.5.0 and later · before 4.5.0.20affected

  • WSO2 WSO2 Carbon API Gateway

    • 9.20.74 and later · before 9.20.74.374affected
    • 9.28.116 and later · before 9.28.116.363affected
    • 9.29.120 and later · before 9.29.120.181affected
    • 9.30.67 and later · before 9.30.67.104affected
    • 9.31.86 and later · before 9.31.86.64affected
    • 9.32.2 and laternot affected

  • WSO2 WSO2 Carbon API Management Implementation

    • 9.20.74 and later · before 9.20.74.374affected
    • 9.28.116 and later · before 9.28.116.363affected
    • 9.29.120 and later · before 9.29.120.181affected
    • 9.30.67 and later · before 9.30.67.104affected
    • 9.31.86 and later · before 9.31.86.64affected
    • 9.32.2 and laternot affected

  • WSO2 WSO2 Traffic Manager

    • 4.5.0 and later · before 4.5.0.19affected

  • WSO2 WSO2 Universal Gateway

    • 4.5.0 and later · before 4.5.0.19affected

Same product

wso2: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-5430Authentication Bypass via JWT Algorithm Mismatch in Multiple WSO2 Products Allows Account TakeoverKEV
    77This week
  • CVE-2026-1728Privilege Escalation via System REST APIs in Multiple WSO2 Products Permits Admin Account Takeover
    39Monitor
  • CVE-2025-9312Improper Certificate-Based Authentication Enforcement in Multiple WSO2 Products
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2025-6670Nov 18, 2025 · Cross-Site Request Forgery (CSRF) in Multiple WSO2 Products via HTTP GET in Admin Services
    35Monitor
  • ← EarlierCVE-2025-13590Feb 19, 2026 · Authenticated arbitrary file upload via a System REST API requiring administrator permission.
    28Monitor
  • Later →CVE-2025-8325May 11, 2026 · Improper Access Control via Gateway API in Multiple WSO2 Products Allows Unauthorized Operations
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records