CVE-2019-15150

Name: CVE-2019-15150
Creator: NVD / NIST
Published: 2019-08-19T04:15:13.517+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.16%

Last modified Jun 17, 2026

CVE-2019-15150 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 1.16% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

1.16%

63.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-352

Affected Software

Vendor	Product	Versions
Schine.Games	Mw-Oauth2client	< 0.4

References

http://packetstormsecurity.com/files/154140/MediaWiki-OAuth2-Client-0.3-Cross-Site-Request-Forgery.htmlThird Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2019/Aug/25Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/08/19/1Mailing List, Third Party Advisory
https://github.com/Schine/MW-OAuth2Client/commit/6a4fe4500ddd72ad4e826d9d63b2d69512bd10d1Patch
https://github.com/Schine/MW-OAuth2Client/releases/tag/v0.4Release Notes
https://seclists.org/bugtraq/2019/Aug/32Mailing List, Third Party Advisory
http://packetstormsecurity.com/files/154140/MediaWiki-OAuth2-Client-0.3-Cross-Site-Request-Forgery.htmlThird Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2019/Aug/25Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/08/19/1Mailing List, Third Party Advisory
https://github.com/Schine/MW-OAuth2Client/commit/6a4fe4500ddd72ad4e826d9d63b2d69512bd10d1Patch
https://github.com/Schine/MW-OAuth2Client/releases/tag/v0.4Release Notes
https://seclists.org/bugtraq/2019/Aug/32Mailing List, Third Party Advisory

Timeline

Published: Aug 19, 2019
Last Modified: Jun 17, 2026
Status: Modified

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 score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.16% probability of exploitation in the next 30 days.

How do I fix CVE-2019-15150?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-15150?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST