Cross-site scripting (XSS) vulnerability in skins/plone_templates/default_error_message.pt in Plone before 2.5.3 allows remote attackers to inject arbitrary web script or HTML via the type_name parameter to Members/ipa/createObject.
skins/plone_templates/default_error_message.pt
Members/ipa/createObject
"https://github.com/pypa/advisory-database/blob/main/vulns/plone/PYSEC-2026-896.yaml"