CVE-2016-4311

Cross-site request forgery (CSRF) vulnerability in the XACML flow feature in WSO2 Identity Server...

8.8 HighPublic exploit

Cross-site request forgery (CSRF) vulnerability in the XACML flow feature in WSO2 Identity Server 5.1.0 allows remote attackers to hijack the authentication of privileged users for requests that process XACML requests via an entitlement/eval-policy-submit.jsp request.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

3.38%Up 2.2 points since Feb 4, 2022

What each source reports

NVD Score used 8.8

Record: CVE-2016-4311
CVSS 3.0: 8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness: CWE-352
Updated: 2026-11-02

CVE List No score

Record: CVE-2016-4311
Updated: 2026-11-02

EUVDEUVD-2016-5311 No score

Record: EUVD-2016-5311
Updated: 2026-11-03

GitHub AdvisoriesGHSA-839c-vxrv-chvh 8.8

Cross-site request forgery (CSRF) vulnerability in the XACML flow feature in WSO2 Identity Server...

Record: GHSA-839c-vxrv-chvh
CVSS 3.0: 8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-352
Updated: 2026-11-02

Affected products

wso2 identity server

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	WSO2 Identity Server 5.1.0 - Multiple Vulnerabilities	2016-08-16

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-4311 is a high vulnerability (CVSS 8.8) in Wso2 Identity Server, published February 16, 2017. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 3.38%, the 88th percentile. No source names a fixed version.