CVE-2013-1639: n/a vulnerability

CVE-2013-1639: Opera before 12.13 does not send CORS preflight requests in all required cases, which allows remote attacke...

Opera before 12.13 does not send CORS preflight requests in all required cases, which allows remote attackers to bypass a CSRF protection mechanism via a crafted web site that triggers a CORS request.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 15:13 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Opera browser flaw. Versions before 12.13 could skip required CORS preflight checks, letting a malicious website bypass some CSRF protections when a victim used the affected browser. Business urgency is mainly for environments still running legacy Opera. Exposure is likely limited to endpoints still using Opera versions earlier than 12.13, including legacy Linux packages referenced by openSUSE. Modern environments without that browser version are unlikely to be affected. Treat this as a legacy exposure cleanup item, not an emergency, unless unsupported Opera versions remain in use on sensitive systems. Mitigation focus: Inventory endpoints for Opera versions earlier than 12.13.; Upgrade affected Opera installations to 12.13 or later where applicable.; Remove unsupported legacy Opera builds from managed systems..

Prepared: Jun 24, 2026, 11:46 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: Feb 8, 2013, 11:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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