CVE-2018-20745

Yii 2.x through 2.0.15.1 actively converts a wildcard CORS policy into reflecting an arbitrary Origin header value, which is incompatible with the CORS security design, and could lead to CORS misconfiguration security problems.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 31%
VendorProductVersion
yiiframeworkyii
2.0 ≤
𝑥
≤ 2.0.15.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/yiisoft/yii2/issues/16193
https://www.usenix.org/system/files/conference/usenixsecurity18/sec18-chen.pdf
https://github.com/yiisoft/yii2/issues/16193
https://www.usenix.org/system/files/conference/usenixsecurity18/sec18-chen.pdf