Collected research

Opera XSS vectors

Gareth Heyes · thespanner.co.uk

Opera still honoured the table background attribute as a javascript: URL, and a fuzzer's protocol findings turned out to be real rather than false positives. Arbitrary Unicode characters can be repeated between the string 'javascript' and the colon and are still accepted, giving a long list of filter-evading variants of the same vector.

Record

Researcher

Gareth Heyes

Published by

thespanner.co.uk

Topic

XSS

In the archive

• Collected in the 2009 research round

Related sources

• JavaScript protocol fuzzer and Opera

Tags

• xss
• filter-bypass
• unicode
• url-parsing
• fuzzing
• owasp-a03-2021
• owasp-a05-2021

This page is the archive's own catalogue record. The research is the work of Gareth Heyes, first published at the original source. Preserved copies are kept so the citation survives its host; this one was last captured on 17 August 2026.