CVE-2016-4312

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2017-02-17 · updated 2026-06-17
Weakness: CWE-611

Description

XML external entity (XXE) vulnerability in the XACML flow feature in WSO2 Identity Server 5.1.0 before WSO2-CARBON-PATCH-4.4.0-0231 allows remote authenticated users with access to XACML features to read arbitrary files, cause a denial of service, conduct server-side request forgery (SSRF) attacks, or have unspecified other impact via a crafted XACML request to entitlement/eval-policy-submit.jsp. NOTE: this issue can be combined with CVE-2016-4311 to exploit the vulnerability without credentials.

Affected products

WSO2 Identity Server: 5.1.0

References

http://hyp3rlinx.altervista.org/advisories/WSO2-IDENTITY-SERVER-v5.1.0-XML-External-Entity.txt
http://packetstormsecurity.com/files/138329/WSO2-Identity-Server-5.1.0-XML-Injection.html
http://www.securityfocus.com/archive/1/539199/100/0/threaded
http://www.securityfocus.com/bid/92485
https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2016-0096
https://www.exploit-db.com/exploits/40239/
http://hyp3rlinx.altervista.org/advisories/WSO2-IDENTITY-SERVER-v5.1.0-XML-External-Entity.txt
http://packetstormsecurity.com/files/138329/WSO2-Identity-Server-5.1.0-XML-Injection.html
http://www.securityfocus.com/archive/1/539199/100/0/threaded
http://www.securityfocus.com/bid/92485
https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2016-0096
https://www.exploit-db.com/exploits/40239/

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