dbcve.org
FirefoxWeb browser · Mozilla

CVE-2024-10465

MEDIUM · 6.5 CVSS v3.1 Published 2024-10-29
Fix available
A fix is available. Upgrade to 128.4.0 / 132.0 or later.
See remediation →
72/100
Remediation priority · Elevated
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A clipboard "paste" button could persist across tabs which allowed a spoofing attack. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A clipboard 'paste' button in Firefox and Thunderbird retains its state when switching between tabs, enabling a UI spoofing attack where users may believe they're interacting with a legitimate paste button from the current page but are actually triggering behavior from a previous tab's context.

MitigationUpgrade to Firefox 132, Firefox ESR 128.4, Thunderbird 128.4, or Thunderbird 132 or later to obtain the patch that resets the paste button state when switching tabs.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
FirefoxWeb browser
Affected:< 128.4.0< 132.0
ThunderbirdApplication
Affected:< 128.4.0>= 129.0, < 132.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check Firefox version on Windows
    Open Firefox, click the menu icon (three horizontal lines) > Help > About Firefox. The version number is displayed in the dialog that opens.
    Affected if The displayed version is lower than 128.4.0 or is between 128.4.0 and 131.x inclusive (any version < 132.0)
  2. Check Firefox version on macOS
    Open Firefox, click Firefox in the menu bar > About Firefox. The version number appears in the dialog.
    Affected if The displayed version is lower than 128.4.0 or is between 128.4.0 and 131.x inclusive (any version < 132.0)
  3. Check Firefox version on Linux
    Run 'firefox --version' in a terminal, or open Firefox and navigate to 'about:support' to view version details.
    Affected if The displayed version is lower than 128.4.0 or is between 128.4.0 and 131.x inclusive (any version < 132.0)
  4. Check Thunderbird version on Windows
    Open Thunderbird, click the menu icon > Help > About Thunderbird. The version number is displayed in the dialog.
    Affected if The displayed version is lower than 128.4.0, or is 129.0 through 131.x inclusive (any version < 132.0 that is not 128.4.0)
  5. Check Thunderbird version on macOS
    Open Thunderbird, click Thunderbird in the menu bar > About Thunderbird. The version appears in the dialog.
    Affected if The displayed version is lower than 128.4.0, or is 129.0 through 131.x inclusive (any version < 132.0 that is not 128.4.0)
  6. Check Thunderbird version on Linux
    Run 'thunderbird --version' in a terminal, or open Thunderbird and navigate to 'about:support' to view version details.
    Affected if The displayed version is lower than 128.4.0, or is 129.0 through 131.x inclusive (any version < 132.0 that is not 128.4.0)

You are affected if you are running any version of Firefox or Thunderbird that is lower than 132.0, except for the patched versions 128.4.0 which is not listed as affected for Firefox.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 128.4.0 / 132.0 or later
Fixed in 128.4.0132.0
Interim mitigation

Upgrade to Firefox 132, Firefox ESR 128.4, Thunderbird 128.4, or Thunderbird 132 or later to obtain the patch that resets the paste button state when switching tabs.

Recommended fix High confidence

Firefox 132.0 (or Firefox ESR 128.4.0); Thunderbird 132.0 (or Thunderbird 128.4.0)

  1. Check current version by going to Menu > Help > About Firefox or Menu > Help > About Thunderbird
  2. Download Firefox 132.0 or later (or Firefox ESR 128.4.0 or later) from www.mozilla.org
  3. Download Thunderbird 132.0 or later (or Thunderbird 128.4.0 or later) from www.mozilla.org
  4. Run the installer to update the application
  5. Restart the browser or email client to complete the update
Caveat Standard Mozilla release - review release notes for any add-on or settings compatibility notes

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Firefox Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing6.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,380
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,808.

Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-10465 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data