CVE-2018-1321 High severity vulnerability that affects org.apache.syncope:syncope-core

What is CVE-2018-1321?

CVE-2018-1321 is a high-severity code injection vulnerability in Apache Syncope, published on 20 Mar 2018. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

An administrator with report and template entitlements in Apache Syncope 1.2.x before 1.2.11, 2.0.x before 2.0.8, and unsupported releases 1.0.x and 1.1.x which may be also affected, can use XSL Transformations (XSLT) to perform malicious operations, including but not limited to file read, file write, and code execution.

Weakness: CWE-20

Which versions are affected by CVE-2018-1321?

4 open source packages ship an affected version, including org.apache.syncope:syncope-core. It affects 1 product.

Products include Apache Syncope.

How do I fix CVE-2018-1321?

Upgrade org.apache.syncope:syncope-core to a fixed version for your release line: 1.2.11 or 2.0.8.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2018-1321 being exploited?

There is no known exploitation of CVE-2018-1321 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in Apache Syncope

• CVE-2026-53405 Apache Syncope: Remote Code Execution via Flowable BPMN Groovy ScriptTask Critical 9.8
• CVE-2026-53421 Apache Syncope: Remote Code Execution via Scripted Connector Critical 9.8
• CVE-2026-57308 Apache Syncope: SQL injection vulnerability in Audit Events search Critical 9.8
• CVE-2026-62183 Apache Syncope: User self-service privilege escalation Critical 9.8
• CVE-2026-63071 Apache Syncope: RCE via Groovy Sandbox bypass Critical 9.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-xgc9-9w4v-h33h.