EUVD-2026-69084
GHSA-rqcx-xxr3-g4gp
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Victim must navigate to malicious page (UI:R); no attacker auth needed; scope change reflects cross-origin XSS; C:L/I:L appropriate for limited script injection without full takeover.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
4DescriptionNVD
Other issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155 and Firefox ESR 153.2.
AnalysisAI
Cross-site scripting in Firefox's DOM Navigation component allows a remote unauthenticated attacker to inject and execute script content across security origins when a victim visits a specially crafted webpage. The vulnerability is classified CWE-79 with scope change (S:C), indicating potential cross-origin impact beyond the attacked page. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to visit an attacker-controlled or attacker-influenced webpage using an unpatched Firefox instance (UI:R). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 6.1 (Medium) score is broadly appropriate: network-delivered, low complexity, no privileges required, but requiring user interaction and producing only limited confidentiality and integrity impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to Mozilla Firefox 155 or later, or Mozilla Firefox ESR 153.2 or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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