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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Reach WSO2 endpoint over network
  2. Delivery
    Supply crafted resource-location value
  3. Exploit
    Server fetches attacker-chosen URL/path
  4. Execution
    Read internal or filesystem resources
  5. Impact
    Exfiltrate sensitive data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V4 - API and Web Service URL allowlisting, SSRF prevention
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Credential Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

The flaw is an SSRF (CWE-918): the WSO2 product accepts user-supplied input specifying a resource location and fetches it without enforcing validation constraints, letting an attacker direct the server to arbitrary internal or external network locations and filesystem resources reachable by the server. Per the vendor CVSS vector (PR:L), exploitation requires at least low-level privileges/authentication and no user interaction (UI:N); however, the description explicitly claims an unauthenticated actor can exploit it, so the true authentication barrier is unresolved and should be confirmed with WSO2. No specific non-default configuration or feature toggle is named in the available advisory reference as a precondition. The realistic impact ceiling depends on what internal services, metadata endpoints, or files are network-reachable from the WSO2 host.

Impact

This is a genuine prioritization concern but not a drop-everything emergency on the available signals. The vendor-supplied CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N) describes a network-reachable, low-complexity SSRF requiring only low privileges, scoring 8.3 (High). The vuln.today decision label is 'this_week', consistent with a serious-but-not-active issue. Critically, there is a direct conflict between signals: the description explicitly states an 'unauthenticated actor' can exploit this, yet the vendor's own CVSS vector carries PR:L (low-privilege authenticated) - this discrepancy must be resolved with WSO2 before treating it as fully pre-auth. No EPSS score was provided, so exploitation probability cannot be quantified. The CVE is NOT in CISA KEV, and no proof-of-concept or exploit reference is present in the input, so there is no public exploit identified at time of analysis - this is a reported/disclosed flaw, not an observed-in-the-wild one. No SSVC automatable/technical-impact decision fields were supplied beyond the 'this_week' label. Net: credible high-severity SSRF in enterprise IAM/API infrastructure warranting prompt patching, but current evidence points to disclosure rather than widespread or targeted exploitation.

Exploit ScenarioDerived

An attacker (per the vendor CVSS, holding at least low-level privileges; the description claims no authentication is needed) sends a request to an affected WSO2 endpoint with a resource-location parameter pointing at an internal service, cloud metadata endpoint, or local filesystem path. Because the product fails to validate the supplied location, the server fetches the attacker-chosen target and returns or acts on internal/external resources otherwise unreachable from outside. No public exploit is identified at time of analysis; the specific vulnerable parameter and endpoint are not detailed in the available advisory reference.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available

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AnalysisAIv1 – Oct 28, 2026

Server-side request forgery in WSO2 API Manager and related WSO2 products lets a remote attacker direct the server to arbitrary internal or external network locations and to filesystem resources reachable from the WSO2 host. The vendor CVSS vector requires low-level privileges (PR:L), while the advisory text claims an unauthenticated actor can exploit the flaw, so the authentication barrier is unresolved and should be confirmed with WSO2. No public exploit identified at time of analysis, no CISA KEV entry is present in the supplied data, and the issue is prioritized for handling this week.

RemediationAI

The supplied data does not include an exact fixed version; treat WSO2 advisory WSO2-2025-4050 (https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4050/) as the authoritative source for patched releases and apply the vendor-provided update for each affected product. Until a fix is confirmed and deployed, restrict outbound network access from WSO2 hosts with an egress allowlist limited to required destinations; this reduces SSRF reach but can break legitimate integrations and requires an accurate inventory. Also block WSO2 hosts from reaching loopback, link-local, internal management networks, and local files that they do not need; this limits data exposure but may interfere with legitimate local service calls. Limit access to affected WSO2 consoles and APIs to trusted users, recognizing that CVSS PR:L means low-privileged users may still trigger the flaw. Monitor outbound requests from WSO2 hosts for unexpected destinations.

Affected VersionsENISA

WSO2 Identity Server as Key Manager 5.10.0 <5.10.0.374
WSO2 API Manager 4.0.0 <4.0.0.379
WSO2 Carbon UI 4.9.26 <4.9.26.37
SAML2 SSO Authenticator UI Bundle 5.9.4 <5.9.4.2
SAML2 SSO Authenticator UI Bundle 5.6.4 <5.6.4.1
WSO2 Carbon UI 4.7.1 <4.7.1.79
WSO2 Carbon UI 4.6.0 <4.6.0.2300
WSO2 Identity Server 6.1.0 <6.1.0.257
WSO2 Open Banking IAM 2.0.0 <2.0.0.423
SAML2 SSO Authenticator UI Bundle 5.8.3 <5.8.3.1
WSO2 API Manager 4.1.0 <4.1.0.265
WSO2 Carbon UI 4.9.0 <4.9.0.107
SAML2 SSO Authenticator UI Bundle 5.5.2 <5.5.2.5
WSO2 API Manager 3.1.0 <3.1.0.354
WSO2 Carbon UI 4.10.9 <4.10.9.77
WSO2 Carbon UI 4.9.27 <4.9.27.24
WSO2 API Manager 4.4.0 <4.4.0.79
WSO2 Carbon UI 4.8.1 <4.8.1.50
WSO2 API Manager 3.2.0 <3.2.0.458
WSO2 Identity Server 5.10.0 <5.10.0.383
SAML2 SSO Authenticator UI Bundle 5.5.10 <5.5.10.1
SAML2 SSO Authenticator UI Bundle 5.5.9 <5.5.9.4
WSO2 Identity Server 6.0.0 <6.0.0.256
WSO2 API Manager 3.2.1 <3.2.1.99
WSO2 Identity Server 5.11.0 <5.11.0.430
WSO2 API Manager 4.2.0 <4.2.0.205
WSO2 Identity Server 7.0.0 <7.0.0.134
WSO2 Carbon UI 4.6.4 <4.6.4.28
WSO2 Carbon UI 4.6.3 <4.6.3.46
WSO2 Open Banking AM 2.0.0 <2.0.0.403
SAML2 SSO Authenticator UI Bundle 5.7.2 <5.7.2.1
SAML2 SSO Authenticator UI Bundle 5.8.7 <5.8.7.2
SAML2 SSO Authenticator UI Bundle 5.5.0 <5.5.0.2
WSO2 Carbon UI 4.6.1 <4.6.1.165
WSO2 API Manager 4.3.0 <4.3.0.115

Affected Packages

euvd saml2_sso_authenticator_ui_bundle fix: 5.5.0.2, 5.5.2.5, 5.5.9.4, 5.5.10.1, 5.6.4.1, 5.7.2.1, 5.8.3.1, 5.8.7.2, 5.9.4.2
euvd wso2_api_manager fix: 3.1.0.354, 3.2.0.458, 3.2.1.99, 4.0.0.379, 4.1.0.265, 4.2.0.205, 4.3.0.115, 4.4.0.79
euvd wso2_carbon_ui fix: 4.6.0.2300, 4.6.1.165, 4.6.3.46, 4.6.4.28, 4.7.1.79, 4.8.1.50, 4.9.0.107, 4.9.26.37, 4.9.27.24, 4.10.9.77
euvd wso2_identity_server fix: 5.10.0.383, 5.11.0.430, 6.0.0.256, 6.1.0.257, 7.0.0.134
euvd wso2_identity_server_as_key_manager fix: 5.10.0.374
euvd wso2_open_banking_am fix: 2.0.0.403
euvd wso2_open_banking_iam fix: 2.0.0.423

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 7 packages in euvd

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

Technical ContextAI · show details

The affected codebase spans WSO2 API Manager, WSO2 Identity Server, WSO2 Identity Server as Key Manager, WSO2 Open Banking AM, WSO2 Open Banking IAM, the SAML2 SSO Authenticator UI bundle, and WSO2 Carbon UI, per the CPE data. CWE-918 (server-side request forgery) fits an access-control implementation defect in which user-supplied input describing a resource location is accepted without the expected validation constraints, causing the server to fetch a destination chosen by the attacker. The exact endpoint, parameter, and any non-default configuration precondition are not described in the available advisory reference. Because the request originates from the WSO2 host, the practical reach is bounded by that host's network and filesystem access, so impact depends on what internal services or local files are reachable; the assessed vector rates confidentiality high, integrity low, and availability low. Authentication is ambiguous: the CVSS vector includes PR:L, but the description states an unauthenticated actor can exploit it.

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Severity by source

Vendor (WSO2) PRIMARY 8.3 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
vuln.today AI 7.6 HIGH

Network SSRF with low complexity; PR:L retained per vendor vector despite the description's unauthenticated claim; C:H for reading internal/filesystem data, I:L and A:L for limited forced-request effects.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (WSO2).

CVSS VectorVendor: WSO2

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low

Lifecycle Timeline

2
Patch available
Oct 28, 2026 - 20:04 EUVD
CVE Published
Oct 28, 2026 - 19:21 cve.org
HIGH 8.3

DescriptionCVE.org

Due to the improper implementation of access control rules, the WSO2 product accepts user-supplied input related to resource location without enforcing expected validation constraints. This can be exploited by an unauthenticated actor to direct the server to make requests to arbitrary network locations.

Exploiting this vulnerability allows a malicious actor to access both internal and external resources, available through the network or filesystem, that are reachable by the WSO2 product. This could potentially lead to unauthorized access to sensitive data and systems.

Executive ViewAI

Why It Matters

A high-severity server-side request forgery (SSRF) vulnerability, CVE-2025-14260, affects WSO2 API Manager and related WSO2 products, potentially enabling attackers to access sensitive internal systems and filesystem resources. Customer-facing API services and internal data may be at risk, requiring immediate validation and mitigation to prevent unauthorized access and data exposure.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations include restricting outbound network access from the WSO2 server, applying input validation for user-supplied URLs, and segmenting the WSO2 host to limit access to internal resources.

Threat Intelligence Overview

Prevalence
Medium
widely used enterprise API-management and IAM suite, but not ubiquitous
Data Quality
3 sources
Confidence: Low

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 HIGH
CISA KEV No
Public POC No
EPSS N/A
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
High

Priority Score

42
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +42
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

CVE-2026-5430 CRITICAL POC
10.0 Aug 06

Authentication bypass in WSO2 API Manager and related components (Universal Gateway, Traffic Manager, API Control Plane,

CVE-2026-2053 CRITICAL
10.0 Jun 26

Server-side request forgery in WSO2 API Manager lets unauthenticated remote attackers coerce the gateway into making ser

CVE-2026-1728 CRITICAL
9.8 Aug 06

Privilege escalation in WSO2 API Manager and related Carbon-based products allows a low-privileged user, using a validly

CVE-2025-15039 CRITICAL
9.4 Aug 06

Authentication bypass in WSO2 Identity Server and multiple WSO2 platform products (API Manager, Open Banking AM/IAM/KM,

CVE-2025-8325 HIGH
8.8 May 11

Missing role-based authorization on WSO2 API Manager's Gateway REST API lets any authenticated user invoke privileged Ga

CVE-2026-4249 HIGH
8.6 Jul 06

Persistent denial of service in multiple WSO2 products - including WSO2 API Manager, WSO2 Universal Gateway, WSO2 Traffi

CVE-2025-12737 HIGH
8.4 Sep 03

OS command injection (CWE-78) in WSO2's shared Carbon Console administrative interface allows an authenticated administr

CVE-2026-3416 HIGH
7.5 Sep 03

Predictable HMAC shared secrets generated by the API Publisher component of WSO2 API Manager allow a sophisticated attac

CVE-2025-8154 HIGH
7.5 May 11

HTTP response header injection in WSO2 API Manager and its companion WSO2 gateway components (Universal Gateway, Traffic

CVE-2024-2374 HIGH
7.5 Apr 16

The XML parsers within multiple WSO2 products accept user-supplied XML data without properly configuring to prevent the

CVE-2025-13173 MEDIUM
6.5 Oct 19

WSO2 Carbon OAuth, as shipped in WSO2 Identity Server, API Manager, and related WSO2 products, can leave session-bound t

CVE-2025-8591 MEDIUM
6.1 Jul 06

Reflected cross-site scripting across at least eight WSO2 platform products - including Identity Server, API Manager, AP

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