Medium severity · published Oct 21, 2026
CVE-2024-5139
Cross-Site Scripting via Authentication Endpoint in Multiple WSO2 Products Enables UI Manipulation and Redirection
6.1
CVSS
0.2%
EPSS
No
On KEV
Description
The Authentication Endpoint accepts user-supplied input without sufficient encoding, allowing for the injection of malicious JavaScript payloads. This vulnerability can be triggered by submitting crafted input to the Authentication Endpoint.
Successful exploitation allows an attacker to redirect the user's browser to a malicious website, modify the web page's user interface, or extract sensitive information from the browser. However, due to the `httpOnly` flag on session-related cookies, session hijacking is not possible.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WA
WSO2 API Manager · WSO2
3.1.0 before 3.1.0.286; 3.2.0 before 3.2.0.376; 3.2.1 before 3.2.1.10; 4.0.0 before 4.0.0.299; 4.1.0 before 4.1.0.159; 4.2.0 before 4.2.0.91; +1 more · source: vendor
WC
WSO2 Carbon User Management UI · WSO2
5.14.127 before 5.14.127.6; 5.17.5 before 5.17.5.273; 5.17.118 before 5.17.118.3; 5.18.187 before 5.18.187.260; 5.18.248 before 5.18.248.12; 5.23.8 before 5.23.8.191; +4 more · source: vendor
WE
WSO2 Enterprise Integrator · WSO2
6.6.0 before 6.6.0.204 · source: vendor
WI
WSO2 Identity Server · WSO2
5.10.0 before 5.10.0.310; 6.0.0 before 6.0.0.212; 6.1.0 before 6.1.0.195; 7.0.0 before 7.0.0.64 · source: vendor
WI
WSO2 Identity Server as Key Manager · WSO2
5.10.0 before 5.10.0.306 · source: vendor
WO
WSO2 Open Banking AM · WSO2
2.0.0 before 2.0.0.336 · source: vendor
WO
WSO2 Open Banking IAM · WSO2
2.0.0 before 2.0.0.357 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-5139
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-5139
github.com
https://github.com/wso2/carbon-identity-framework/pull/5740
github.com
https://github.com/wso2/carbon-identity-framework/pull/5741
security.docs.wso2.com
https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2024-3382/
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