[ https://issues.apache.org/jira/browse/TEXT-42?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rob Tompkins updated TEXT-42: ----------------------------- Fix Version/s: (was: 1.0) 1.x > [XSS] Possible attacks through StringEscapeUtils.escapeEcmaScript? > ------------------------------------------------------------------ > > Key: TEXT-42 > URL: https://issues.apache.org/jira/browse/TEXT-42 > Project: Commons Text > Issue Type: Bug > Reporter: Andy Reek > Labels: XSS > Fix For: 1.x > > > org.apache.commons.lang3.StringEscapeUtils.escapeEcmaScript does the escape > via a prefixed '\' on all characters which must be escaped. I am not sure if > this is really secure, if am looking at the comments on > https://www.owasp.org/index.php/XSS_(Cross_Site_Scripting)_Prevention_Cheat_Sheet#RULE_.233_-_JavaScript_Escape_Before_Inserting_Untrusted_Data_into_JavaScript_Data_Values. > They say it is possible to do an attack by escape the escape. I tested this > with the string '\"' and the output was '\\\"'. Is this really > ecma-/java-script secure? Or is it better to use the implementation used by > OWASP? -- This message was sent by Atlassian JIRA (v6.3.4#6332)