CVE-2023-29540

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Summary

CVECVE-2023-29540
StatePUBLISHED
Assignermozilla
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-06-02 17:15:12 UTC
Updated2026-08-19 15:29:21 UTC
DescriptionUsing a redirect embedded into <code>sourceMappingUrls</code> could allow for navigation to external protocol links in sandboxed iframes without <code>allow-top-navigation-to-custom-protocols</code>. This vulnerability affects Firefox for Android < 112, Firefox < 112, and Focus for Android < 112.

Risk And Classification

Primary CVSS: v3.1 6.1 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.003150000 probability, percentile 0.243400000 (date 2026-08-19)

Problem Types: CWE-601 | Iframe sandbox bypass using redirects and sourceMappingUrls

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Mozilla Firefox All All All All
Application Mozilla Firefox Mobile All All All All
Application Mozilla Focus All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Mozilla Firefox For Android affected unspecified 112 custom Not specified
CNA Mozilla Firefox affected unspecified 112 custom Not specified
CNA Mozilla Focus For Android affected unspecified 112 custom Not specified

References

ReferenceSourceLinkTags
Security Vulnerabilities fixed in Firefox 112, Firefox for Android 112, Focus for Android 112 — Mozilla af854a3a-2127-422b-91ae-364da2661108 www.mozilla.org Vendor Advisory
Access Denied af854a3a-2127-422b-91ae-364da2661108 bugzilla.mozilla.org Issue Tracking, Permissions Required, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 199282 Ubuntu Security Notification for Firefox Vulnerabilities (USN-6010-1)
  • 378383 Mozilla Firefox Multiple Vulnerabilities (MFSA2023-13)
  • 630889 For ios Vulnerability CVE-2023-29540
  • 710739 Gentoo Linux Mozilla Firefox Multiple Vulnerabilities (GLSA 202305-35)

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