CVE-2020-15171: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

September 10, 2020 (updated November 19, 2021)

In XWiki before versions 11.10.5 or 12.2.1, any user with SCRIPT right (EDIT right before XWiki 7.4) can gain access to the application server Servlet context which contains tools allowing to instantiate arbitrary Java objects and invoke methods that may lead to arbitrary code execution. The only workaround is to give SCRIPT right only to trusted users.

References

github.com/advisories/GHSA-7qw5-pqhc-xm4g
github.com/xwiki/xwiki-platform/security/advisories/GHSA-7qw5-pqhc-xm4g
nvd.nist.gov/vuln/detail/CVE-2020-15171

Code Behaviors & Features

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