TI-2004-02098 Aliases CVE-2004-2226 GHSA-f2c7-j9r7-mm93

Mozilla Mail 1.7.1 and 1.7.3, and Thunderbird before 0.9, when HTML-Mails is enabled…

LOW 25Published 2005-07-17 · Updated 2024-08-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Partial · None · None
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

Mozilla Mail 1.7.1 and 1.7.3, and Thunderbird before 0.9, when HTML-Mails is enabled, allows remote attackers to determine valid e-mail addresses via an HTML e-mail that references a Cascading Style Sheets (CSS) document on the attacker's server.

Why it matters now

EPSS 0.0121 68th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:a:mozilla:thunderbird:0.8:::::::*	0.8	Vulnerable	Mozilla
cpe:2.3:a:mozilla:thunderbird:1.7.1:::::::*	1.7.1	Vulnerable	Mozilla
cpe:2.3:a:mozilla:thunderbird:1.7.3:::::::*	1.7.3	Vulnerable	Mozilla

cpe:2.3:a:mozilla:thunderbird:0.8:*:*:*:*:*:*:* Versions 0.8 Vulnerable ·Mozilla
cpe:2.3:a:mozilla:thunderbird:1.7.1:*:*:*:*:*:*:* Versions 1.7.1 Vulnerable ·Mozilla
cpe:2.3:a:mozilla:thunderbird:1.7.3:*:*:*:*:*:*:* Versions 1.7.3 Vulnerable ·Mozilla

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2004-2226
2026-10-03 Alias added: GHSA-f2c7-j9r7-mm93

References

Patch 1

11394

Other 1

20041102 CSS in E-Mails possible E-Mail-Validity Check for Spammers?

TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8

See all 2067 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences