Security readout for executives and security teams
CVE-2013-6853 is a stored cross-site scripting issue in the Y! Toolbar plugin for Firefox on Mac and Windows. A victim who stores a crafted URL could later trigger attacker-controlled script or HTML. Business urgency is mainly for legacy workstation hygiene, not internet-facing server exposure. Exposure is likely limited to endpoints still running the affected legacy Y! Toolbar Firefox plugin versions. Organizations without those toolbar versions, or without Firefox extension use from that era, are unlikely to be affected. Treat as a legacy endpoint cleanup item. It is not shown as actively exploited, but stored XSS in a browser toolbar can expose user sessions or browser context where the vulnerable plugin remains installed. Mitigation focus: Inventory Firefox extensions for Y! Toolbar installations.; Remove or disable affected Y! Toolbar versions where found.; Check vendor or archive guidance for any fixed toolbar release..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2013-6853 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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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
- yahootoolbar-clickstream-xss(90529)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
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