Fix (APAR): PH22080 Status: Fix Release: 19.0.0.12 Operating System: AIX,IBM i,Linux,OS X,Windows,z/OS Supersedes Fixes: CMVC Defect: xxxxxx Byte size of APAR: 3537450 Date: 2020-03-30 Abstract: 3RD PARTY XSS vulnerability in WebSphere Liberty (CVE-2020-4304) Description/symptom of problem: PH22080 resolves the following problem: ERROR DESCRIPTION: 3RD PARTY XSS vulnerability in WebSphere Liberty (CVE-2020-4304). LOCAL FIX: PROBLEM SUMMARY: 3RD PARTY XSS vulnerability in WebSphere Liberty (CVE-2020-4304). PROBLEM CONCLUSION: 3RD PARTY XSS vulnerability in WebSphere Liberty (CVE-2020-4304). Directions to apply fix: Install Fix to all WebSphere installations unless special instructions are included below. Special Instructions: None NOTE: The user must: * Logged in with the same authority level when unpacking a fix, fix pack or refresh pack. * Be at V1.9.0 or newer of the Installation Manager. Certain iFixes may require a newer version of the Installation Manager and the Installation Manager will inform you during the installation process if a newer version is required. The IBM Information Center can provide details, if needed, on the use of the Installation Manager to apply the iFixes. http://www.ibm.com/support/knowledgecenter/SSDV2W_1.8.5/com.ibm.cic.agent.ui.doc/helpindex_imic.html. Shutdown WebSphere Application Server Liberty before applying the iFixes. Restart WebSphere Application Server Liberty after applying the iFixes. Directions to remove fix: The IBM Information Center can provide details, if needed, on the use of the Installation Manager to remove the iFixes. http://www.ibm.com/support/knowledgecenter/SSDV2W_1.8.5/com.ibm.cic.agent.ui.doc/helpindex_imic.html. Shutdown WebSphere Application Server Liberty before removing the iFixes. Restart WebSphere Application Server Liberty after removing the iFixes. Directions to re-apply fix: 1) Shutdown WebSphere Application Server Liberty. 2) Follow the Fix instructions to apply the fix. 3) Restart WebSphere Application Server Liberty. Additional Information: