Cross-site scripting (XSS) vulnerability in Allegro RomPager before 4.51, as used on the ZyXEL P660HW-D1, Huawei MT882, Sitecom WL-174, TP-LINK TD-8816, and D-Link DSL-2640R and DSL-2641R, when the "forbidden author header" protection mechanism is bypassed, allows remote attackers to inject arbitrary web script or HTML by requesting a nonexistent URI in conjunction with a crafted HTTP Referer header that is not properly handled in a 404 page. NOTE: there is no CVE for a "URL redirection" issue that some sources list separately.
https://github.com/cve-search/cve-search
https://euvd.enisa.europa.eu/vulnerability/EUVD-2013-6588
http://osvdb.org/ref/99/rompager407.pdf
http://antoniovazquezblanco.github.io/docs/advisories/Advisory_RomPagerXSS.pdf