CVE-2009-1840
Status: ModifiedHigh (9.3)—
Mozilla Firefox before 3.0.11, Thunderbird, and SeaMonkey do not check content policy before loading a script file into a XUL document, which allows remote attackers to bypass intended access restrictions via a crafted HTML document, as demonstrated by a "web bug" in an e-mail message, or web script or an advertisement in a web page.
CVSS
- Version: 2.0
- Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
- Base score: 9.3
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 2.22%
- Percentile among all scored CVEs: 82
- Score date: 10/7/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (3)
CWEs
- CWE-264
References
- http://osvdb.org/55158
- http://secunia.com/advisories/35331
- http://secunia.com/advisories/35415
- http://secunia.com/advisories/35431
- http://secunia.com/advisories/35439
- http://secunia.com/advisories/35440
- http://secunia.com/advisories/35468
- http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.372468
- http://sunsolve.sun.com/search/document.do?assetkey=1-66-264308-1
- http://www.debian.org/security/2009/dsa-1820
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:141
- http://www.mozilla.org/security/announce/2009/mfsa2009-31.html
- http://www.securityfocus.com/bid/35326
- http://www.securitytracker.com/id?1022379
- http://www.vupen.com/english/advisories/2009/1572
- https://bugzilla.mozilla.org/show_bug.cgi?id=477979
- https://bugzilla.redhat.com/show_bug.cgi?id=503582
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51076
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9448
- https://rhn.redhat.com/errata/RHSA-2009-1095.html
- https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00574.html
- https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00657.html
- http://osvdb.org/55158
- http://secunia.com/advisories/35331
- http://secunia.com/advisories/35415
- http://secunia.com/advisories/35431
- http://secunia.com/advisories/35439
- http://secunia.com/advisories/35440
- http://secunia.com/advisories/35468
- http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.372468
- http://sunsolve.sun.com/search/document.do?assetkey=1-66-264308-1
- http://www.debian.org/security/2009/dsa-1820
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:141
- http://www.mozilla.org/security/announce/2009/mfsa2009-31.html
- http://www.securityfocus.com/bid/35326
- http://www.securitytracker.com/id?1022379
- http://www.vupen.com/english/advisories/2009/1572
- https://bugzilla.mozilla.org/show_bug.cgi?id=477979
- https://bugzilla.redhat.com/show_bug.cgi?id=503582
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51076
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9448
- https://rhn.redhat.com/errata/RHSA-2009-1095.html
- https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00574.html
- https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00657.html
Raw JSON (NVD)
Show
{
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"cveTags": [],
"metrics": {
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"vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
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"accessComplexity": "MEDIUM",
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"vulnStatus": "Modified",
"weaknesses": [
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"type": "Primary",
"source": "nvd@nist.gov",
"description": [
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"descriptions": [
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"value": "Mozilla Firefox before 3.0.11, Thunderbird, and SeaMonkey do not check content policy before loading a script file into a XUL document, which allows remote attackers to bypass intended access restrictions via a crafted HTML document, as demonstrated by a \"web bug\" in an e-mail message, or web script or an advertisement in a web page."
},
{
"lang": "es",
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],
"lastModified": "2026-06-16T23:08:10.350",
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