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HIGH · 7.5

CVE-2021-31555

An issue was discovered in the Oauth extension for MediaWiki through 1.35.2. It did not validate the oarc_version (aka oauth_registered_consumer.oarc_version) parameter's length.

Vulnerability Description

An issue was discovered in the Oauth extension for MediaWiki through 1.35.2. It did not validate the oarc_version (aka oauth_registered_consumer.oarc_version) parameter's length.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE

Affected Products

VendorProductVersions
MediawikiMediawiki<= 1.35.2

Related Weaknesses (CWE)

CWE-20

References

FAQ

What is CVE-2021-31555?

CVE-2021-31555 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue was discovered in the Oauth extension for MediaWiki through 1.35.2. It did not validate the oarc_version (aka oauth_registered_consumer.oarc_version) parameter's length.

How severe is CVE-2021-31555?

CVE-2021-31555 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-31555?

Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki.