CVE-2023-4110705.09.2023, 16:15TEF portal 2023-07-17 is vulnerable to a persistent cross site scripting (XSS)attack.Cross-site ScriptingEnginsightProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVectorNISTNIST5.4 MEDIUMNETWORKLOWLOWCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NmitreCNA------CVEADP------CISA-ADPADP------Base ScoreCVSS 3.xEPSS ScorePercentile: 60%Known Exploits!https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2023-020.txthttps://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2023-020.txtCommon Weakness EnumerationCWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Referenceshttps://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2023-020.txthttps://www.syss.de/pentest-blog/sicherheitsschwachstellen-im-tef-haendlerportal-syss-2023-020/-021https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2023-020.txthttps://www.syss.de/pentest-blog/sicherheitsschwachstellen-im-tef-haendlerportal-syss-2023-020/-021