CVE-2017-17091

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Summary

CVECVE-2017-17091
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-12-02 06:29:00 UTC
Updated2025-04-20 01:37:25 UTC
Descriptionwp-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.

Risk And Classification

Primary CVSS: v3.0 8.8 HIGH from [email protected]

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

EPSS: 0.044780000 probability, percentile 0.892000000 (date 2026-05-14)

Problem Types: CWE-330 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary8.8HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary6.5AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:S/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Wordpress Wordpress All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Version 4.9.1 « WordPress Codex af854a3a-2127-422b-91ae-364da2661108 codex.wordpress.org Patch, Release Notes
Hardening: Use a properly generated hash for the `newbloguser` key in… · WordPress/WordPress@eaf1cfd · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch
[SECURITY] [DLA 1216-1] wordpress security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
Debian -- Security Information -- DSA-4090-1 wordpress af854a3a-2127-422b-91ae-364da2661108 www.debian.org
WordPress Prior to 4.9.1 Multiple Security Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
WordPress 4.9.1 Security and Maintenance Release af854a3a-2127-422b-91ae-364da2661108 wordpress.org Release Notes
WordPress 3.7-4.9 - 'newbloguser' Key Weak Hashing af854a3a-2127-422b-91ae-364da2661108 wpvulndb.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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