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CVE-2007-0981 is a cross-domain vulnerability in Mozilla-based browsers, including Firefox before 1.5.0.10 and 2.x before 2.0.0.2, and SeaMonkey before 1.0.8. The issue arises from improper handling of embedded null characters in values assigned to the DOM property location.hostname. When a script writes a hostname containing a null byte, browser security logic and DNS/network resolution logic interpret the hostname differently: networking code truncates at the null byte, while domain relationship checks can evaluate the full string from the right side. This inconsistency can cause the browser to misidentify the effective origin and incorrectly permit cross-domain access. The flaw is particularly relevant where sites use document.domain to relax same-origin restrictions.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
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YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.