CVE-2016-4312 EXPLOIT
7.5
HIGH · CVSS 3.0 · EPSS 6% (pctl 93)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 7.5 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 6% — more likely to be exploited than 93% of all CVEs |
| Weakness | CWE-611 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2017-02-17 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| wso2 | identity server |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | WSO2 Identity Server 5.1.0 - Multiple Vulnerabilities | 2016-08-16 |
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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