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MitreCVE-2018-8899

HistoryMar 22, 2018 - 5:29 a.m.

CVE-2018-8899

2018-03-2205:29:00

CWE-79

mitre

web.nvd.nist.gov

cve-2018-8899

identityserver

identityserver4

xss

security vulnerability

nvd

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.001

Percentile

47.0%

JSON

IdentityServer IdentityServer4 1.x before 1.5.3 and 2.x before 2.1.3 does not encode the redirect URI on the authorization response page, which might lead to XSS in some configurations.

Affected configurations

Nvd

Node

identityserveridentityserver4Range1.0.0–1.5.2

identityserveridentityserver4Range2.0.0–2.1.2

VendorProductVersionCPE
identityserveridentityserver4*cpe:2.3:a:identityserver:identityserver4:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
identityserver	identityserver4	*	cpe:2.3:a:identityserver:identityserver4::::::::

References

github.com/IdentityServer/IdentityServer4/commit/21d0da227f50ac102de469a13bc5a15d2cc0f895

github.com/IdentityServer/IdentityServer4/issues/2164

github.com/IdentityServer/IdentityServer4/releases/tag/1.5.3

github.com/IdentityServer/IdentityServer4/releases/tag/2.1.3

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.001

Percentile

47.0%

JSON

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