CVE-2026-117860EUVD-2026-111031GHSA-WMWC-8Q25-G888
Same-origin policy bypass in the DOM: Navigation component
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Mozilla Firefox, including its Extended Support Release, contains a flaw in the Navigation component of the browser's DOM that could allow a website to bypass the same-origin policy. This could let a malicious site access content from another origin that it should not be able to read or interact with.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Timeline
- CVE published
- First seen by cve.now
- Record last updated
Affected versions
- Mozilla Firefox
Version range not reported
- Mozilla Thunderbird
Version range not reported