Multiple cross-site scripting (XSS) vulnerabilities in OxWall 1.1.1 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) captchaField, (2) email, (3) form_name, (4) password, (5) realname, (6) repeatPassword, or (7) username parameters to Oxwall/join; (8) captcha, (9) email, (10) form_name, (11) from, or (12) subject parameters to Oxwall/contact; (13) tag parameter to Oxwall/blogs/browse-by-tag; or (14) PATH_INFO to Oxwall/photo/viewlist/tagged, (15) Oxwall/photo/viewlist, or (16) Oxwall/video/viewlist.