Description
Mozilla Firefox before 3.0.19, 3.5.x before 3.5.9, and 3.6.x before 3.6.2, and SeaMonkey before 2.0.4, does not prevent applets from interpreting mouse clicks as drag-and-drop actions, which allows remote attackers to execute arbitrary JavaScript with Chrome privileges by loading a chrome: URL and then loading a javascript: URL.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 5.0 | xulrunner | 1.9.0.19-1 | DSA-2027-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | firefox | 3.0.19-1.el5_5 | RHSA-2010:0332 |
| RHEL 5 | xulrunner +2 | 1.9.0.19-1.el5_5 | RHSA-2010:0332 |
| RHEL 4 | firefox | 3.0.19-1.el4 | RHSA-2010:0332 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 50.1.0-1.1 | openSUSE-SU-2024:10071-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Advisories 4
- RHSA-2010:0332 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2027-1 xulrunner - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:14572-1 firefox-esr-128.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10071-1 MozillaFirefox-50.1.0-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=546909
- 39397 third-party-advisory
- 39308 third-party-advisory
- 39136 third-party-advisory
- ADV-2010-0781 vdb-entry
- USN-921-1 vendor-advisory
- 1023776 vdb-entry
- http://www.mozilla.org/security/announce/2010/mfsa2010-20.html
- SUSE-SR:2010:013 vendor-advisory
- ADV-2010-0764 vdb-entry
- firefox-draganddrop-code-execution(57391) vdb-entry
- MDVSA-2010:070 vendor-advisory
- oval:org.mitre.oval:def:10460 vdb-entry signature
- 39243 third-party-advisory
- oval:org.mitre.oval:def:6975 vdb-entry signature
- ADV-2010-0748 vdb-entry
- ADV-2010-0849 vdb-entry
- DSA-2027 vendor-advisory
- RHSA-2010:0332 vendor-advisory
- 39240 third-party-advisory