CVE-2019-15150

CVE-2019-15150 is a high-severity vulnerability in Schine.games Mw-oauth2client with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

Description

In the OAuth2 Client extension before 0.4 for MediaWiki, a CSRF vulnerability exists due to the OAuth2 state parameter not being checked in the callback function.

Frequently asked questions

What is CVE-2019-15150?
In the OAuth2 Client extension before 0.4 for MediaWiki, a CSRF vulnerability exists due to the OAuth2 state parameter not being checked in the callback function.
How severe is CVE-2019-15150?
CVE-2019-15150 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-15150 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-15150?
CVE-2019-15150 affects Schine.games Mw-oauth2client. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-15150?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-15150 published?
CVE-2019-15150 was published on 2019-08-19 and last updated on 2026-06-17.

References

Affected products (1)

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