CVE-2004-1380

Firefox before 1.0 and Mozilla before 1.7.5 allows inactive (background) tabs to launch dialog...

5.0 MediumPublic exploitFix available

Firefox before 1.0 and Mozilla before 1.7.5 allows inactive (background) tabs to launch dialog boxes, which can allow remote attackers to spoof the dialog boxes from web sites in other windows and facilitate phishing attacks, aka the "Dialog Box Spoofing Vulnerability."

Exploit likelihood

3.68%Up 1.7 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2004-1380
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:P/A:N
Updated: 2026-11-02

CVE List No score

Record: CVE-2004-1380
Updated: 2026-11-02

EUVDEUVD-2004-1377 No score

Record: EUVD-2004-1377
Updated: 2026-11-03

GitHub AdvisoriesGHSA-vv9m-2w98-m7rf No score

Firefox before 1.0 and Mozilla before 1.7.5 allows inactive (background) tabs to launch dialog...

Record: GHSA-vv9m-2w98-m7rf
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`devhelp` Red Hat:enterprise_linux:4::as	before 0:0.9.2-2.4.3	0:0.9.2-2.4.3
`devhelp-debuginfo` Red Hat:enterprise_linux:4::as	before 0:0.9.2-2.4.3	0:0.9.2-2.4.3
`devhelp-devel` Red Hat:enterprise_linux:4::as	before 0:0.9.2-2.4.3	0:0.9.2-2.4.3
`evolution` Red Hat:enterprise_linux:4::as	before 0:2.0.2-14	0:2.0.2-14
`evolution-debuginfo` Red Hat:enterprise_linux:4::as	before 0:2.0.2-14	0:2.0.2-14
`evolution-devel` Red Hat:enterprise_linux:4::as	before 0:2.0.2-14	0:2.0.2-14
`devhelp` Red Hat:enterprise_linux:4::desktop	before 0:0.9.2-2.4.3	0:0.9.2-2.4.3
`devhelp-debuginfo` Red Hat:enterprise_linux:4::desktop	before 0:0.9.2-2.4.3	0:0.9.2-2.4.3
`devhelp-devel` Red Hat:enterprise_linux:4::desktop	before 0:0.9.2-2.4.3	0:0.9.2-2.4.3
`evolution` Red Hat:enterprise_linux:4::desktop	before 0:2.0.2-14	0:2.0.2-14

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Affected packages
Package	Affected	Fixed
`evolution-debuginfo` Red Hat:enterprise_linux:4::desktop	before 0:2.0.2-14	0:2.0.2-14
`evolution-devel` Red Hat:enterprise_linux:4::desktop	before 0:2.0.2-14	0:2.0.2-14
`devhelp` Red Hat:enterprise_linux:4::es	before 0:0.9.2-2.4.3	0:0.9.2-2.4.3
`devhelp-debuginfo` Red Hat:enterprise_linux:4::es	before 0:0.9.2-2.4.3	0:0.9.2-2.4.3
`devhelp-devel` Red Hat:enterprise_linux:4::es	before 0:0.9.2-2.4.3	0:0.9.2-2.4.3
`evolution` Red Hat:enterprise_linux:4::es	before 0:2.0.2-14	0:2.0.2-14
`evolution-debuginfo` Red Hat:enterprise_linux:4::es	before 0:2.0.2-14	0:2.0.2-14
`evolution-devel` Red Hat:enterprise_linux:4::es	before 0:2.0.2-14	0:2.0.2-14
`devhelp` Red Hat:enterprise_linux:4::ws	before 0:0.9.2-2.4.3	0:0.9.2-2.4.3
`devhelp-debuginfo` Red Hat:enterprise_linux:4::ws	before 0:0.9.2-2.4.3	0:0.9.2-2.4.3
`devhelp-devel` Red Hat:enterprise_linux:4::ws	before 0:0.9.2-2.4.3	0:0.9.2-2.4.3
`evolution` Red Hat:enterprise_linux:4::ws	before 0:2.0.2-14	0:2.0.2-14
`evolution-debuginfo` Red Hat:enterprise_linux:4::ws	before 0:2.0.2-14	0:2.0.2-14
`evolution-devel` Red Hat:enterprise_linux:4::ws	before 0:2.0.2-14	0:2.0.2-14

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Multiple Browsers - Tabbed Browsing	2004-10-22

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2004-1380 is a medium vulnerability (CVSS 5.0) in Mozilla Firefox, published October 20, 2004. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 3.68%, the 89th percentile. Fixed in devhelp 0:0.9.2-2.4.3.

References

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