The E4X implementation in Mozilla Firefox before 1.5.0.1, Thunderbird 1.5 if running…
Priority LOW 32Published · Updated
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 · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The E4X implementation in Mozilla Firefox before 1.5.0.1, Thunderbird 1.5 if running Javascript in mail, and SeaMonkey before 1.0 exposes the internal "AnyName" object to external interfaces, which allows multiple cooperating domains to exchange information in violation of the same origin restrictions.
Why it matters now
EPSS 0.02019 81st 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 · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:1.5:*:*:*:*:*:*:* | 1.5 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:1.5:beta1:*:*:*:*:*:* | 1.5 beta1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:seamonkey:1.0:*:alpha:*:*:*:*:* | 1.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:seamonkey:1.0:beta:*:*:*:*:*:* | 1.0 beta | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:thunderbird:1.5:*:*:*:*:*:*:* | 1.5 | Vulnerable | Mozilla |
- cpe:2.3:a:mozilla:firefox:1.5:*:*:*:*:*:*:* Versions 1.5 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:1.5:beta1:*:*:*:*:*:* Versions 1.5 beta1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:seamonkey:1.0:*:alpha:*:*:*:*:* Versions 1.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:seamonkey:1.0:beta:*:*:*:*:*:* Versions 1.0 beta Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:thunderbird:1.5:*:*:*:*:*:*:* Versions 1.5 Vulnerable ·Mozilla
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2006-0299
- 2026-10-03 Alias added: GHSA-54xf-f642-5wh5
References
More Mozilla Firefox vulnerabilities
- 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
Sources
- CVE-2006-0299 · CVE Program
- CVE-2006-0299 · NVD
- FIRST EPSS
- GHSA-54xf-f642-5wh5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences