UNSUPPORTED WHEN ASSIGNED

The value set as the DefaultLocaleResolver.LOCALEKEY attribute on the session was not validated while resolving XML definition files, leading to possible path traversal and eventually SSRF/XXE when passing user-controlled data to this key. Passing user-controlled data to this key may be relatively common, as it was also used like that to set the language in the 'tiles-test' application shipped with Tiles.

This issue affects Apache Tiles from version 2 onwards.

NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Severity: low

Affected versions:

- Apache Tiles 2.0.0 before

Description:

UNSUPPORTED WHEN ASSIGNED

The value set as the DefaultLocaleResolver.LOCALEKEY attribute on the session was not validated while resolving XML definition files, leading to possible path traversal and eventually SSRF/XXE when passing user-controlled data to this key. Passing user-controlled data to this key may be relatively common, as it was also used like that to set the language in the 'tiles-test' application shipped with Tiles.

This issue affects Apache Tiles from version 2 onwards.

NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Credit:

Joseph Beeton of Contrast Security (finder)

References:

https://attic.apache.org/projects/tiles.html https://www.cve.org/CVERecord?id=CVE-2023-49735

Apache Tiles 2.1 before 2.1.2, as used in Apache Struts and other products, evaluates Expression Language (EL) expressions twice in certain circumstances, which allows remote attackers to conduct cross-site scripting (XSS) attacks or obtain sensitive information via unspecified vectors, related to the (1) tiles:putAttribute and (2) tiles:insertTemplate JSP tags.