CVE-2012-0446: n/a vulnerability

CVE-2012-0446: Multiple cross-site scripting (XSS) vulnerabilities in Mozilla Firefox 4.x through 9.0, Thunderbird 5.0 thr...

Multiple cross-site scripting (XSS) vulnerabilities in Mozilla Firefox 4.x through 9.0, Thunderbird 5.0 through 9.0, and SeaMonkey before 2.7 allow remote attackers to inject arbitrary web script or HTML via a (1) web page or (2) Firefox extension, related to improper enforcement of XPConnect security restrictions for frame scripts that call untrusted objects.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 18:23 UTC (UTC+00:00)

Security readout for executives and security teams

This is a legacy Mozilla client-side XSS issue affecting old Firefox, Thunderbird, and SeaMonkey versions. A malicious web page or Firefox extension could inject script or HTML because XPConnect security restrictions were not enforced correctly. Modern supported Mozilla releases should not be in the affected ranges, but legacy endpoints may still matter. Exposure is most likely on unmanaged or legacy desktops, kiosks, frozen virtual machines, or old Linux distribution images still running the listed Mozilla versions. Normal current browser and mail client fleets are unlikely to be affected if they are supported and patched. Prioritize as legacy endpoint cleanup rather than an emergency internet-facing server issue. If affected clients still exist, remediation should be prompt because web and email clients are high-contact software exposed to untrusted content. Mitigation focus: Upgrade Firefox, Thunderbird, and SeaMonkey away from the affected version ranges.; Apply Mozilla or operating-system distribution security advisories for legacy packaged builds.; Remove or restrict untrusted Firefox extensions on any legacy systems pending upgrade..

Prepared: Jun 27, 2026, 17:28 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-2012-0446 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: Feb 1, 2012, 16:00 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

4Source 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=705651CVE reference · x_refsource_CONFIRM
mozilla-xpconnect-xss(72837)CVE reference · vdb-entry, x_refsource_XF
oval:org.mitre.oval:def:14304CVE reference · vdb-entry, signature

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.