# Elastic Stack 6.2.4 and 5.6.9 security update **URL:** \ **Category:** Security Announcements\ **Created:** [April 17, 2018, 7:18pm UTC](https://discuss.elastic.co/t/elastic-stack-6-2-4-and-5-6-9-security-update/128422 "2018-04-17T19:18:53Z")\ **Posts on this page:** 1\ **Showing post:** 1
**Author:** ![joshbressers](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/joshbressers/32/42332_2.png) [@joshbressers](https://discuss.elastic.co/u/joshbressers)\ **Post date:** [April 17, 2018, 7:18pm UTC](https://discuss.elastic.co/t/elastic-stack-6-2-4-and-5-6-9-security-update/128422/1 "2018-04-17T19:18:54Z")
**X-Pack Machine Learning XSS vulnerability (ESA-2018-06)** X-Pack Machine Learning versions before 6.2.4 and 5.6.9 had a cross-site scripting (XSS) vulnerability. Users with manage\_ml permissions could create jobs containing malicious data as part of their configuration that could allow the attacker to obtain sensitive information from or perform destructive actions on behalf of other ML users viewing the results of the jobs. **Affected Versions** All versions of X-Pack Machine Learning **Solutions and Mitigations** Users should upgrade to Elasticsearch version 6.2.4 or 5.6.9. **CVE ID:** CVE-2018-3823 * * * **X-Pack Machine Learning XSS vulnerability (ESA-2018-08)** X-Pack Machine Learning versions before 6.2.4 and 5.6.9 had a cross-site scripting (XSS) vulnerability. If an attacker is able to inject data into an index that has a ML job running against it, then when another user views the results of the ML job it could allow the attacker to obtain sensitive information from or perform destructive actions on behalf of that other ML user. **Affected Versions** All versions of X-Pack Machine Learning **Solutions and Mitigations** Users should upgrade to Elasticsearch version 6.2.4 or 5.6.9. **CVE ID:** CVE-2018-3824 --- _[View the full topic](https://discuss.elastic.co/t/elastic-stack-6-2-4-and-5-6-9-security-update/128422)._