CVE-2004-0520

Cross-site scripting (XSS) vulnerability in mime.php for SquirrelMail before 1.4.3 allows remote...

6.8 MediumPublic exploitFix available

Cross-site scripting (XSS) vulnerability in mime.php for SquirrelMail before 1.4.3 allows remote attackers to insert arbitrary HTML and script via the content-type mail header, as demonstrated using read_body.php.

Exploit likelihood

7.13%Down 5.2 points since Feb 4, 2022

What each source reports

NVD Score used 6.8

Record: CVE-2004-0520
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2004-0520
Updated: 2026-11-02

EUVDEUVD-2004-0519 No score

Record: EUVD-2004-0519
Updated: 2026-11-03

GitHub AdvisoriesGHSA-5vvf-4w4f-hj33 No score

Cross-site scripting (XSS) vulnerability in mime.php for SquirrelMail before 1.4.3 allows remote...

Record: GHSA-5vvf-4w4f-hj33
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`squirrelmail` Debian:3.0	before 1:1.2.6-1.4	1:1.2.6-1.4
`squirrelmail` Red Hat:enterprise_linux:3::as	before 0:1.4.3-0.e3.1	0:1.4.3-0.e3.1
`squirrelmail` Red Hat:enterprise_linux:3::desktop	before 0:1.4.3-0.e3.1	0:1.4.3-0.e3.1
`squirrelmail` Red Hat:enterprise_linux:3::es	before 0:1.4.3-0.e3.1	0:1.4.3-0.e3.1
`squirrelmail` Red Hat:enterprise_linux:3::ws	before 0:1.4.3-0.e3.1	0:1.4.3-0.e3.1

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	SquirrelMail 1.x - Email Header HTML Injection	2004-05-31

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-2004-0520 is a medium vulnerability (CVSS 6.8) in Squirrelmail, published June 3, 2004. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 7.13%, the 94th percentile. Fixed in squirrelmail 1:1.2.6-1.4.

References

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