CVE-2012-0455: n/a vulnerability

CVE-2012-0455: Mozilla Firefox before 3.6.28 and 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird before 3.1....

Mozilla Firefox before 3.6.28 and 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird before 3.1.20 and 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 do not properly restrict drag-and-drop operations on javascript: URLs, which allows user-assisted remote attackers to conduct cross-site scripting (XSS) attacks via a crafted web page, related to a "DragAndDropJacking" issue.

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

Security readout for executives and security teams

This is an old Mozilla browser and mail-client issue where a crafted page could misuse drag-and-drop handling of javascript: URLs to trigger cross-site scripting. It required user assistance, so it is less urgent than silent remote code execution, but unmanaged legacy clients could still expose users to web-based attacks. Exposure is mainly legacy systems still running the affected Mozilla versions: Firefox before 3.6.28 or 10.0.3 ESR, Thunderbird before 3.1.20 or 10.0.3 ESR, and SeaMonkey before 2.8. Modern standard-managed endpoints are unlikely to be affected. Treat this as a legacy hygiene issue unless affected versions still exist. Prioritize validation on unmanaged desktops, old servers with GUI packages, lab systems, and long-lived virtual images. Mitigation focus: Upgrade affected Mozilla products to the fixed versions named in vendor guidance.; Remove unsupported Firefox, Thunderbird, and SeaMonkey builds from managed endpoints.; Apply Linux distribution security updates where Mozilla packages came from OS repositories..

Prepared: Jun 24, 2026, 12:52 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

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Mar 14, 2012, 19:00 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

3Source 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=704354CVE reference · x_refsource_CONFIRM
oval:org.mitre.oval:def:14829CVE 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

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