CVE-2026-9309

5.4 Moyenne

Publiée le 01/06/2026 à 15:16 · Modifiée le 22/07/2026 à 09:10 · Analysée par le NVD · Source : security@mozilla.org

Description

Firefox for iOS Reader View did not properly escape HTML tags in JSON-LD metadata. A malicious page could inject markup that changed Reader View behavior and leaked sensitive URL parameters. These parameters could then be used to access internal pages, potentially resulting in arbitrary JavaScript execution in an internal origin. This vulnerability was fixed in Firefox for iOS 151.2.

Traduire en français

Produits concernés

Mozilla Firefox for iOS
Mozilla firefox

Scores CVSS

Version	Score	Source	Vecteur
3.1	5.4 Moyenne	134c704f-9b21-4f2e-91b3-4a467353bcc0	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N`

Faiblesses (CWE)

CWE-79

Références

https://bugzilla.mozilla.org/show_bug.cgi?id=2036573 Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-53/ Vendor Advisory

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories