WordPress Core < 4.9.1 - Authorization Bypass

2017-11-29 00:00

Anonymous

Strategic Overview

Status

Patched in 3.7.24

Affected CoreWordPress 4.9

Affected Version3.7 – 4.9 · 14 branches

CVSS5.4Medium

CVECVE-2017-17091

View all WordPress 4.9 vulnerabilities

Vulnerability Overview

wp-admin/user-new.php in WordPress before 4.9.1 sets the newbloguser key to a string that can be directly derived from the user ID, which allows remote attackers to bypass intended access restrictions by entering this string.

Technical Analysis

REMEDIATION: Update to one of the following versions, or a newer patched version: 3.7.24, 3.8.24, 3.9.22, 4.0.21, 4.1.21, 4.2.18, 4.3.14, 4.4.13, 4.5.12, 4.6.9, 4.7.8, 4.8.4, 4.9.1 --- IDENTIFIER: CWE-285 (Improper Authorization) The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

External References

https://www.cve.org/CVERecord?id=CVE-2017-17091 https://www.wordfence.com/threat-intel/vulnerabilities/id/76516f23-487f-48f6-82c0-88df651ddc65

CVSS Vector

5.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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