CVE-2015-8009: n/a vulnerability

CVE-2015-8009: The MWOAuthDataStore::lookup_token function in Extension:OAuth for MediaWiki 1.25.x before 1.25.3, 1.24.x b...

The MWOAuthDataStore::lookup_token function in Extension:OAuth for MediaWiki 1.25.x before 1.25.3, 1.24.x before 1.24.4, and before 1.23.11 does not properly validate the signature when checking the authorization signature, which allows remote registered Consumers to use another Consumer's credentials by leveraging knowledge of the credentials.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 08:06 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2015-8009 affects MediaWiki’s OAuth extension. A registered OAuth consumer could potentially act using another consumer’s credentials if it knew those credentials, because an authorization signature check was not validated correctly. This is most relevant to organizations running older MediaWiki deployments with OAuth enabled. Exposure is limited to MediaWiki sites using Extension:OAuth on the affected 1.25.x, 1.24.x, or earlier vulnerable branches. The CVE source bundle does not identify affected CPEs or downstream packaged products. Prioritize remediation for public or partner-facing MediaWiki sites that rely on OAuth integrations. The issue is not documented here as actively exploited, but it can undermine trust boundaries between OAuth consumers on vulnerable systems. Mitigation focus: Upgrade affected MediaWiki branches to 1.25.3, 1.24.4, 1.23.11, or later supported releases.; Confirm Extension:OAuth is updated consistently with the MediaWiki deployment.; Review vendor advisories before applying changes to legacy MediaWiki installations..

Prepared: Jun 12, 2026, 22:05 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 25, 2017, 14:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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2Source links

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Source materials

CVE List V5 sourceCVE List V5
https://phabricator.wikimedia.org/T103023CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

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