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CVE-2017-17091
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…
- 8.8HighCVSS base score
- 7.0%Exploitation in 30 daysEPSS · top 5.7% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By mitre
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High8.8 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 7.0% · top 5.7% of all CVEs (12 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
n/a
- affected n/a
References
References7
- DSA-4090 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://wpvulndb.com/vulnerabilities/8969 (opens in a new tab)x_refsource_MISCx_transferred
- [debian-lts-announce] 20171221 [SECURITY] [DLA 1216-1] wordpress security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 102024 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://codex.wordpress.org/Version_4.9.1 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/WordPress/WordPress/commit/eaf1cfdc1fe0bdffabd8d879c591b864d833326c (opens in a new tab)x_refsource_MISCx_transferred
- https://wordpress.org/news/2017/11/wordpress-4-9-1-security-and-maintenance-release/ (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2017-8257 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-17091)Record last updated .