CVE-2009-4102: n/a vulnerability

CVE-2009-4102: Sage 1.4.3 and earlier extension for Firefox performs certain operations with chrome privileges, which allo...

Sage 1.4.3 and earlier extension for Firefox performs certain operations with chrome privileges, which allows remote attackers to execute arbitrary commands and perform cross-domain scripting attacks via the description tag of an RSS feed.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 06:54 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2009-4102 affects the legacy Sage RSS reader extension for Firefox, version 1.4.3 and earlier. A malicious RSS feed could abuse the feed description field to run commands with browser extension privileges or access data across domains. This matters mainly where old Firefox profiles or legacy Linux/browser images still include Sage. Exposure is likely limited to legacy environments using the Sage Firefox extension 1.4.3 or earlier. Check old workstation images, kiosks, lab systems, and historical Debian/Mozilla extension packages. Modern Firefox deployments are unlikely to be affected unless the obsolete extension remains installed. Treat as high priority only where legacy Sage is present. The impact can be serious, but exposure is probably narrow due to the age of the extension. If no affected extension exists in the environment, document non-applicability and close after inventory evidence. Mitigation focus: Remove or disable Sage 1.4.3 and earlier from Firefox profiles.; Upgrade only according to vendor or distribution guidance if still required.; Retire legacy Firefox builds that depend on obsolete extensions..

Prepared: Jun 28, 2026, 13:14 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: Nov 28, 2009, 11:00 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

2Source 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
sage-description-xss(54396)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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