CVE-2009-1309: n/a vulnerability

CVE-2009-1309: Mozilla Firefox before 3.0.9, Thunderbird, and SeaMonkey do not properly implement the Same Origin Policy f...

Mozilla Firefox before 3.0.9, Thunderbird, and SeaMonkey do not properly implement the Same Origin Policy for (1) XMLHttpRequest, involving a mismatch for a document's principal, and (2) XPCNativeWrapper.toString, involving an incorrect __proto__ scope, which allows remote attackers to conduct cross-site scripting (XSS) attacks and possibly other attacks via a crafted document.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 05:04 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Mozilla client-side browser issue. A crafted document could break Same Origin Policy boundaries in Firefox before 3.0.9, Thunderbird, or SeaMonkey, enabling cross-site scripting and possibly related attacks. Business risk is mainly from legacy systems still running these unsupported clients. Exposure is likely limited to legacy endpoints, kiosks, lab systems, or archived server images using Firefox before 3.0.9, Thunderbird, or SeaMonkey packages from 2009-era distributions. Treat this as a legacy exposure cleanup item. It is not KEV-listed, but any remaining affected client is very outdated and should be removed or isolated promptly. Mitigation focus: Upgrade Firefox below 3.0.9 to 3.0.9 or later.; Apply vendor-fixed Thunderbird and SeaMonkey packages from the relevant distribution advisory.; Remove unsupported Mozilla clients from managed endpoints where possible..

Prepared: Jun 28, 2026, 11:04 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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2009-1309 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 22, 2009, 18:00 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

10Source 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
FEDORA-2009-3875CVE reference · vendor-advisory, x_refsource_FEDORA
oval:org.mitre.oval:def:5265CVE reference · vdb-entry, signature
oval:org.mitre.oval:def:6831CVE reference · vdb-entry, signature
oval:org.mitre.oval:def:6139CVE reference · vdb-entry, signature
https://bugzilla.mozilla.org/show_bug.cgi?id=478433CVE reference · x_refsource_CONFIRM
USN-764-1CVE reference · vendor-advisory, x_refsource_UBUNTU
oval:org.mitre.oval:def:5591CVE reference · vdb-entry, signature
oval:org.mitre.oval:def:9494CVE reference · vdb-entry, signature
https://bugzilla.mozilla.org/show_bug.cgi?id=482206CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.