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

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.

Published: 2026-05-11 Last update: 2026-05-27 Assigner: ed10eef1-636d-4fbe-9993-6890dfa878f8 Source: ed10eef1-636d-4fbe-9993-6890dfa878f8
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-8154 is rated Low Risk (27.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.05%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-8154

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-17 0.04% 0.05% +0.01%
2 2026-05-11 — 0.04% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-8154

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 ed10eef1-636d-4fbe-9993-6890dfa878f8
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2025-8154

GitHub Security Advisory for CVE-2025-8154

GHSA-j72f-vgmh-c8hr · Severity: medium — In Webhook API invocations, the component accepts user-supplied input for HTTP request headers...

Affected software / configurations for CVE-2025-8154

Vendor Product Version Raw CPE
wso2 api_control_plane >= 4.5.0, < 4.5.0.21 cpe:2.3:a:wso2:api_control_plane:*:*:*:*:*:*:*:*
wso2 api_manager >= 4.1.0, < 4.1.0.218 cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*
wso2 api_manager >= 4.2.0, < 4.2.0.164 cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*
wso2 api_manager >= 4.3.0, < 4.3.0.74 cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*
wso2 api_manager >= 4.4.0, < 4.4.0.38 cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*
wso2 api_manager >= 4.5.0, < 4.5.0.20 cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*
wso2 traffic_manager >= 4.5.0, < 4.5.0.19 cpe:2.3:a:wso2:traffic_manager:*:*:*:*:*:*:*:*
wso2 universal_gateway >= 4.5.0, < 4.5.0.19 cpe:2.3:a:wso2:universal_gateway:*:*:*:*:*:*:*:*

References for CVE-2025-8154

cvelogic Threat Intelligence