Multiple cross-site scripting (XSS) vulnerabilities in MoinMoin 1.9.x before 1.9.3 allow remote attackers to inject arbitrary web script or HTML via crafted content, related to (1) action/SlideShow.py, (2) action/anywikidraw.py, and (3) action/language_setup.py, a similar issue to CVE-2010-2487.