The SSI printenv command in Apache Tomcat 9.0.0.M1 to 9.0.0.17, 8.5.0 to 8.5.39 and 7.0.0 to 7.0.93 echoes user provided data without escapi

Summary

The SSI printenv command in Apache Tomcat 9.0.0.M1 to 9.0.0.17, 8.5.0 to 8.5.39 and 7.0.0 to 7.0.93 echoes user provided data without escaping and is, therefore, vulnerable to XSS. SSI is disabled by default. The printenv command is intended for debugging and is unlikely to be present in a production website.

Timeline

1. May 28, 2019, 9:01 PM UTCCVE published
2. Jul 13, 2021Public exploit on Exploit-DB

   EDB-50119

3. Aug 4, 2024, 5:44 PM UTCRecord last updated
4. Oct 28, 2026EPSS reached 10%

   FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

• Apache Apache Tomcat

  Apache Tomcat 9.0.0.M1 to 9.0.0.17, 8.5.0 to 8.5.39, 7.0.0 to 7.0.93

• org.apache.tomcat.embed:tomcat-embed-coreMaven

  From 9.0.0 · fixed in 9.0.17

• org.apache.tomcat.embed:tomcat-embed-coreMaven

  From 8.5.0 · fixed in 8.5.40

• org.apache.tomcat.embed:tomcat-embed-coreMaven

  From 7.0.0 · fixed in 7.0.94

• org.apache.tomcat:tomcat-catalinaMaven

  From 9.0.0 · fixed in 9.0.17

• org.apache.tomcat:tomcat-catalinaMaven

  From 8.5.0 · fixed in 8.5.40

• org.apache.tomcat:tomcat-catalinaMaven

  From 7.0.0 · fixed in 7.0.94

• org.apache.tomcat:tomcatMaven

  From 9.0.0 · fixed in 9.0.17

• org.apache.tomcat:tomcatMaven

  From 8.5.0 · fixed in 8.5.40

• org.apache.tomcat:tomcatMaven

  From 7.0.0 · fixed in 7.0.94

References 27