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Comment: Migrated to Confluence 4.0


If a request doesn't match any other defined action, it will be matched by * and requested action name will be used to load JSP file base on the name of action. And as value of {1} is threaten as an OGNL expression, thus allow to execute arbitrary Java code on server side. This vulnerability is combination of two problems:

  • requested action name isn't escaped or checked agains whitelist
  • double evaluation of an OGNL expression in TextParseUtil.translateVariables when combination of $ and % open chars is used.

Proof of concept

Wildcard matching