CVE-2024-6541

Information Disclosure and Integrity Violation via Improper Message Context Handling in Multiple WSO2 Products

MEDIUM

6.8

CVSS Score

Published: August 6, 2026 at 05:31 PM UTC

Updated: August 31, 2026 at 08:26 PM UTC

4 products affected across 1 vendorAPI ManagerEnterprise IntegratorMicro Integrator

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Severity

MEDIUM6.8

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

The Class Mediator fails to correctly validate or sanitize `messageContext` properties when they are used to populate dynamic values. This allows authenticated users to potentially access or modify data across different system invocations that should be isolated. This weakness can lead to the disclosure of sensitive information belonging to other users or the unintended modification of system data by authenticated users. The exact impact depends on how `messageContext` properties are utilized within the affected WSO2 products.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

API Manager · WSO2

60%

3.2.0 ≤ v < 3.2.0.3943.2.1 ≤ v < 3.2.1.214.0.0 ≤ v < 4.0.0.3114.1.0 ≤ v < 4.1.0.1674.2.0 ≤ v < 4.2.0.1104.3.0 ≤ v < 4.3.0.243.2.0 3.2.1 4.0.0 4.1.0 4.2.0 4.3.0

Affected range stops below 3.2.0.394, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.2.1.21, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.0.0.311, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.1.0.167, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.2.0.110, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.3.0.24, so it looks safe — our inference, not a vendor statement

Vendor states this is fixed in 3.2.0 (unknown)

Enterprise Integrator · WSO2

60%

6.6.0 ≤ v < 6.6.0.2056.6.0

Affected range stops below 6.6.0.205, so it looks safe — our inference, not a vendor statement

Vendor states this is fixed in 6.6.0 (unknown)

Micro Integrator · WSO2

60%

1.2.0 ≤ v < 1.2.0.1634.1.0 ≤ v < 4.1.0.1034.3.0 ≤ v < 4.3.0.71.2.0 4.1.0 4.3.0

Affected range stops below 1.2.0.163, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.1.0.103, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.3.0.7, so it looks safe — our inference, not a vendor statement

Vendor states this is fixed in 1.2.0 (unknown)

Synapse · WSO2

60%

2.1.7.wso2v143 ≤ v < 2.1.7.wso2v143_1192.1.7.wso2v182 ≤ v < 2.1.7.wso2v182_932.1.7.wso2v183 ≤ v < 2.1.7.wso2v183_622.1.7.wso2v227 ≤ v < 2.1.7.wso2v227_882.1.7.wso2v271 ≤ v < 2.1.7.wso2v271_602.1.7.wso2v319 ≤ v < 2.1.7.wso2v319_74.0.0.wso2v105 ≤ v < 4.0.0.wso2v105_34.0.0.wso2v119 ≤ v < 4.0.0.wso2v119_34.0.0.wso2v20 ≤ v < 4.0.0.wso2v20_632.1.7.wso2v143 2.1.7.wso2v182 2.1.7.wso2v183 2.1.7.wso2v227 2.1.7.wso2v271 2.1.7.wso2v319 4.0.0.wso2v105 4.0.0.wso2v119 4.0.0.wso2v20

Affected range stops below 2.1.7.wso2v143_119, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.1.7.wso2v182_93, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.1.7.wso2v183_62, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.1.7.wso2v227_88, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.1.7.wso2v271_60, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.1.7.wso2v319_7, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.0.0.wso2v105_3, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.0.0.wso2v119_3, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.0.0.wso2v20_63, so it looks safe — our inference, not a vendor statement

Vendor states this is fixed in v4.0.0-wso2v121 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2024-3520/

References (1)

Vendor Advisory

Source: ed10eef1-636d-4fbe-9993-6890dfa878f8

https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2024-3520/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.8MEDIUMWSO2

Attack Vector: NETWORK
Complexity: HIGH
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: NONE

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-20

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