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Fix Logic Bug in ACFUtil.htmlDecode()

Using Domino V11 (bug also existed since at least 9.0.1 FP7)


The following method

com.ibm.trl.acf.impl.util.ACFUtil.htmlDecode(String string)

in the plugin com.ibm.designer.lib.acf


has a logic bug which you can reproduce with the following 2 line test


        String value = "color: rgb(50, 49, 48); font-family: &quot";



We have an XPages application in which we view emails that have been received from external.

We are using the ACFFilter to ensure that no malicious content is rendered


However we (very occasionally) receive a FacesExceptionEx when some particular content comes through.

When we debug we can trace this to a StringIndexOutOfBoundsException in the htmlDecode method mentioned above


It seems that it is doing a test like this:


i >= length  || (value.charAt(i + 1) != ';'


but this test causes an out of bounds exception when i = 41 and the string length is 42


  • Guest
  • Feb 17 2020
  • Needs Clarification
  • Attach files
  • Guest commented
    20 Feb, 2020 11:15pm

    FYI I am still waiting from a response from HCL regarding opening a support account so can

    we please leave this idea here until I can confirm that I have an account and the ability to raise a bug report

  • Guest commented
    19 Feb, 2020 03:02am

    Sure thing.

    I have submitted a request this morning to get an account with HCL Support

    If I get a response / account then I will post this as a bug report

  • Admin
    Thomas Hampel commented
    18 Feb, 2020 09:06am

    Can you please raise a support ticket to handle this bugreport apropriately?