CVE-2026-9308 Arbitrary JavaScript execution in Reader View due to wrong HTML replacement order

Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, potentially resulting in arbitrary JavaScript execution. This vulnerability was...

CVE-2026-9308

Firefox for iOS is vulnerable to arbitrary JavaScript execution within the Reader View due to an incorrect HTML replacement order. The application incorrectly replaces page content in its HTML template before processing other internal placeholders. This flaw allows a malicious page to include a p...

CVE-2026-9308

Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, potentially resulting in arbitrary JavaScript execution. This vulnerability was...

CVE-2026-9308

Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, potentially resulting in arbitrary JavaScript execution. This vulnerability was...

EUVD-2026-33629

Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, potentially resulting in arbitrary JavaScript execution. This vulnerability was...

CVE-2026-9308 Arbitrary JavaScript execution in Reader View due to wrong HTML replacement order

Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, potentially resulting in arbitrary JavaScript execution. This vulnerability was...

CVE-2026-9309: Improper Neutralization of Input During Web Page Generation

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 JavaScrip...

Mozilla Firefox for iOS 安全漏洞

Mozilla Firefox for iOS is a web browser designed for iOS devices by the Mozilla Foundation in the United States. Versions of Mozilla Firefox for iOS prior to 151.2 contained a security vulnerability. This vulnerability stemmed from Reader View replacing the page content in the HTML template befo...

ALSA-2026:22325 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component CVE-2026-8388 firefox: Other issue in the JavaScript Engine component CVE-2026-8391 firefox: Sandbox escape in the Profile Backup component...

SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2026:2109-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2109-1 advisory. This update for MozillaFirefox fixes the following issues Update to Firefox Extended Support Release 140.11.0...

CVE-2026-9308: Improper Neutralization of Input During Web Page Generation

Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, potentially resulting in arbitrary JavaScript execution. This vulnerability was...

PT-2026-45411

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 JavaScrip...

PT-2026-45410

Name of the Vulnerable Software and Affected Versions Firefox for iOS versions prior to 151.2 Description Reader View in Firefox for iOS replaced page content in its HTML template before substituting other internal placeholders. A malicious page could include a placeholder string that was...

Mozilla Firefox 安全漏洞

Mozilla Firefox is an open-source web browser developed by the Mozilla Foundation in the United States. Versions of Mozilla Firefox prior to 151.2 contained security vulnerabilities. These vulnerabilities stemmed from Reader View incorrectly escaping HTML tags in JSON-LD metadata. This could allo...

firefox security update

An update is available for firefox. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Mozilla Firefox is an open-source web browser, designed for standards...

thunderbird security update

An update is available for thunderbird. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Mozilla Thunderbird is a standalone mail and newsgroup client. Security...

RockyLinux 9 : firefox (RLSA-2026:21378)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:21378 advisory. firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component CVE-2026-8388 firefox: Other issue in the JavaScript Engine component...

RockyLinux 10 : thunderbird (RLSA-2026:19153)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:19153 advisory. firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1 CVE-2026-7323 firefox: thunderbird: Information disclosure d...

RockyLinux 9 : thunderbird (RLSA-2026:21381)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:21381 advisory. firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component CVE-2026-8388 firefox: Other issue in the JavaScript Engine component...

qemu-kvm security update

An update is available for qemu-kvm. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Kernel-based Virtual Machine KVM is a full virtualization solution for Linu...