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CVSS: 10.0EPSS: 0%CPEs: 1EXPL: 0

05 Jul 2023 — A use-after-free condition existed in `NotifyOnHistoryReload` where a `LoadingSessionHistoryEntry` object was freed and a reference to that object remained. This resulted in a potentially exploitable condition when the reference to that object was later reused. This vulnerability affects Firefox < 115. Multiple vulnerabilities have been found in Mozilla Firefox, the worst of which could lead to remote code execution. Versions greater than or equal to 115.6.0:esr are affected. • https://bugzilla.mozilla.org/show_bug.cgi?id=1837993 • CWE-416: Use After Free •

CVSS: 7.8EPSS: 0%CPEs: 6EXPL: 0

05 Jul 2023 — A website could have obscured the fullscreen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13. The Mozilla Foundation Security Advisory describes this flaw as: A website could have obscured the fullscreen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This c... • https://bugzilla.mozilla.org/show_bug.cgi?id=1816287 • CWE-290: Authentication Bypass by Spoofing CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') •

CVSS: 10.0EPSS: 0%CPEs: 6EXPL: 0

05 Jul 2023 — An attacker could have triggered a use-after-free condition when creating a WebRTC connection over HTTPS. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13. The Mozilla Foundation Security Advisory describes this flaw as: An attacker could have triggered a use-after-free condition when creating a WebRTC connection over HTTPS. Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, a... • https://bugzilla.mozilla.org/show_bug.cgi?id=1826002 • CWE-416: Use After Free •

CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0

05 Jul 2023 — When Firefox is configured to block storage of all cookies, it was still possible to store data in localstorage by using an iframe with a source of 'about:blank'. This could have led to malicious websites storing tracking data without permission. This vulnerability affects Firefox < 115. Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information ac... • https://bugzilla.mozilla.org/show_bug.cgi?id=1839464 • CWE-862: Missing Authorization •

CVSS: 7.8EPSS: 0%CPEs: 6EXPL: 0

05 Jul 2023 — When opening Diagcab files, Firefox did not warn the user that these files may contain malicious code. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13. The Mozilla Foundation Security Advisory describes this flaw as: When opening Diagcab files, Firefox did not warn the user that these files may contain malicious code. Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an atta... • https://bugzilla.mozilla.org/show_bug.cgi?id=1837675 • CWE-434: Unrestricted Upload of File with Dangerous Type CWE-1127: Compilation with Insufficient Warnings or Errors •

CVSS: 10.0EPSS: 0%CPEs: 6EXPL: 0

05 Jul 2023 — Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13. The Mozilla Foundation Security Advisory describes this flaw as: Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free. Multiple securi... • https://bugzilla.mozilla.org/show_bug.cgi?id=1834711 • CWE-416: Use After Free •

CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0

05 Jul 2023 — Insufficient validation in the Drag and Drop API in conjunction with social engineering, may have allowed an attacker to trick end-users into creating a shortcut to local system files. This could have been leveraged to execute arbitrary code. This vulnerability affects Firefox < 115. Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across... • https://bugzilla.mozilla.org/show_bug.cgi?id=291640 •

CVSS: 10.0EPSS: 0%CPEs: 6EXPL: 0

05 Jul 2023 — Memory safety bugs present in Firefox 114, Firefox ESR 102.12, and Thunderbird 102.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13. The Mozilla Foundation Security Advisory describes this flaw as: Memory safety bugs present in Firefox 114, Firefox ESR 102.12, and Thunderbird 102.12. Some of these bugs showed... • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1832306%2C1834862%2C1835886%2C1836550%2C1837450 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •

CVSS: 10.0EPSS: 0%CPEs: 1EXPL: 0

05 Jul 2023 — Memory safety bugs present in Firefox 114. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 115. Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1750870%2C1825552%2C1826206%2C1827076%2C1828690%2C1833503%2C1835710%2C1838587 • CWE-787: Out-of-bounds Write •

CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0

05 Jul 2023 — A website could have obscured the fullscreen notification by using an option element by introducing lag via an expensive computational function. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 115. Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrar... • https://bugzilla.mozilla.org/show_bug.cgi?id=1832195 •