CVE-2013-3210: n/a vulnerability

CVE-2013-3210: Opera before 12.15 does not properly block top-level domains in Set-Cookie headers, which allows remote att...

Opera before 12.15 does not properly block top-level domains in Set-Cookie headers, which allows remote attackers to obtain sensitive information by leveraging control of a different web site in the same top-level domain.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 16, 2024, 23:15 UTC (UTC+00:00)

Security readout for executives and security teams

Older Opera browsers before 12.15 mishandled cookie rules. A malicious site on the same top-level domain could use this weakness to access sensitive information tied to another site. Business risk is mainly legacy endpoint exposure rather than server-side infrastructure exposure. Organizations are likely exposed only where Opera versions earlier than 12.15 remain installed or usable. The source bundle does not provide CPEs, platform details, or enterprise deployment scope. Treat this as a legacy browser hygiene issue. It is not KEV-listed in the provided bundle, but vulnerable browsers could expose sensitive web data if still present. Mitigation focus: Upgrade Opera installations to version 12.15 or later.; Remove unsupported legacy Opera browsers from managed endpoints.; Check Opera advisory 1047 and the 12.15 changelog for vendor guidance..

Prepared: Jun 14, 2026, 22:07 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: Apr 19, 2013, 10:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

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

n/an/an/aListed

Weakness

CWE details

No CWE listed

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