CVE-2009-4127
Unspecified vulnerability in Wikipedia Toolbar extension before 0.5.9.2 for Firefox allows user...
Unspecified vulnerability in Wikipedia Toolbar extension before 0.5.9.2 for Firefox allows user-assisted remote attackers to execute arbitrary JavaScript with Chrome privileges via vectors involving unspecified Toolbar buttons and the eval function. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
Exploit likelihood
What each source reports
NVD Score used
Unspecified vulnerability in Wikipedia Toolbar extension before 0.5.9.2 for Firefox allows user-assisted remote attackers to execute arbitrary JavaScript with Chrome privileges via vectors involving unspecified Toolbar buttons and the eval function. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
- Record
CVE-2009-4127- CVSS 2.0
- 9.3 High
AV:N/AC:M/Au:N/C:C/I:C/A:C - Weakness
- CWE-94
- Updated
- 2026-11-02
CVE List No score
Unspecified vulnerability in Wikipedia Toolbar extension before 0.5.9.2 for Firefox allows user-assisted remote attackers to execute arbitrary JavaScript with Chrome privileges via vectors involving unspecified Toolbar buttons and the eval function. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
- Record
CVE-2009-4127- Updated
- 2026-11-02
EUVDEUVD-2009-4097 No score
Unspecified vulnerability in Wikipedia Toolbar extension before 0.5.9.2 for Firefox allows user-assisted remote attackers to execute arbitrary JavaScript with Chrome privileges via vectors involving unspecified Toolbar buttons and the eval function. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
- Record
EUVD-2009-4097- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5wgm-hp6v-w7qm No score
Unspecified vulnerability in Wikipedia Toolbar extension before 0.5.9.2 for Firefox allows user...
Unspecified vulnerability in Wikipedia Toolbar extension before 0.5.9.2 for Firefox allows user-assisted remote attackers to execute arbitrary JavaScript with Chrome privileges via vectors involving unspecified Toolbar buttons and the eval function. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
- Record
GHSA-5wgm-hp6v-w7qm- Weakness
- CWE-94
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-4127 is a high vulnerability (CVSS 9.3) in Wikipedia Toolbar, published December 2, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.96%, the 92nd percentile. No source names a fixed version.