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VulnerabilityPublished Updated

CVE-2024-10462: Truncation of a long URL could have allowed origin spoofing in a permission prompt

Source GCVE Database

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Authoritative record:CVE-2024-10462· High 7.5

Not known to be exploited · CVSS 7.5 High · fixed in 132 : patch affected systems soon.

Data as of 29 Oct 2026, 23:30 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CISA-ADPCVSS 3.17.5
Patch
Available – fixed in 132, 128.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Oct 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

AI-suggested

This vulnerability is fixed in Firefox 132, Firefox ESR 128.4, Thunderbird 128.4, and Thunderbird 132. Users and administrators should update to these versions or later to mitigate the risk. No additional mitigation steps are required beyond applying the official updates.

Description

CVE-2024-10462 is a vulnerability in Mozilla Firefox and Thunderbird where truncation of a long URL could allow origin spoofing in a permission prompt. This could mislead users about the true origin of a permission request. The issue affects Firefox versions prior to 132 and Firefox ESR prior to 128.4, as well as Thunderbird versions prior to 128.4 and 132. Mozilla has fixed this vulnerability in Firefox 132 and Firefox ESR 128.4.

References

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