Vulnerability in Yiiframework Yii2-Authclient

CVE-2023-50708

yii2-authclient is an extension that adds OpenID, OAuth, OAuth2 and OpenId Connect consumers for the Yii framework 2.0. In yii2-authclient prior to version 2.2.15, the Oauth1/2 `state` and OpenID Connect `nonce` is vulnerable for a `timing attack` since it is compared via regular string comparison (instead of `Yii::$app->getSecurity()->compareString()`). Version 2.2.15 contains a patch for the issue. No known workarounds are available.

EPSS: 0.007 (50.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-50708?
CVE-2023-50708 is a medium-severity vulnerability in Yiiframework Yii2-Authclient, classified under Observable Discrepancy. CVSS score: 6.1/10. Published 2023-12-22.
How severe is CVE-2023-50708?
Medium severity. CVSS v3 base score is 6.1 out of 10.