CVE-2008-5511: n/a vulnerability

CVE-2008-5511: Mozilla Firefox 3.x before 3.0.5 and 2.x before 2.0.0.19, Thunderbird 2.x before 2.0.0.19, and SeaMonkey 1....

Mozilla Firefox 3.x before 3.0.5 and 2.x before 2.0.0.19, Thunderbird 2.x before 2.0.0.19, and SeaMonkey 1.x before 1.1.14 allows remote attackers to bypass the same origin policy and conduct cross-site scripting (XSS) attacks via an XBL binding to an "unloaded document."

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 10:56 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2008-5511 is an old Mozilla same-origin policy bypass affecting Firefox, Thunderbird, and SeaMonkey. A malicious web context could cross security boundaries and enable cross-site scripting. The main business risk is legacy systems, kiosks, or old Linux images still running these obsolete client versions. Exposure is most likely in unmanaged legacy desktops, frozen virtual images, kiosk builds, or old distributions retaining vulnerable Mozilla packages. Modern supported Firefox, Thunderbird, and SeaMonkey versions should not be affected by this specific issue. Treat this as a legacy exposure cleanup item unless vulnerable clients are still in active use. If found on production endpoints, prioritize removal or upgrade because browser-origin bypasses can expose user sessions and trusted web data. Mitigation focus: Upgrade affected Mozilla products to the fixed versions or later.; Use vendor-supported OS packages from Debian, Ubuntu, Red Hat, or equivalent channels.; Remove obsolete Firefox, Thunderbird, and SeaMonkey builds from managed endpoints..

Prepared: Jun 28, 2026, 11:41 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 17, 2008, 23:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

7Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://bugzilla.mozilla.org/show_bug.cgi?id=451680CVE reference · x_refsource_MISC
oval:org.mitre.oval:def:11881CVE reference · vdb-entry, signature
USN-690-3CVE reference · vendor-advisory, x_refsource_UBUNTU
USN-690-1CVE reference · vendor-advisory, x_refsource_UBUNTU
mozilla-xbl-security-bypass(47417)CVE reference · vdb-entry, x_refsource_XF
https://bugzilla.mozilla.org/show_bug.cgi?id=464174CVE reference · x_refsource_MISC

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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