CVE-2017-17091 json
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 a…
published 2017-12-02 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-8257
- cvss
- 8.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 7.0%
- EPSS 7.0% chance of exploitation in 30 days, percentile 94%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- wordpress Debian 14, Debian 13, Debian 12 4.9.1+dfsg-1
debian advisories DEBIAN-CVE-2017-17091
Exploit prediction
7.02% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.8 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-330 Use of Insufficiently Random Values
- Technology feeds
References
-
github.com
/WordPress/WordPress/commit/eaf1cfdc1fe0bdffabd8d879c591b864d833326c
patch
-
codex.wordpress.org
/Version_4.9.1
patch, release-notes
-
debian.org
/security/2018/dsa-4090
vendor-advisory
-
wpvulndb.com
/vulnerabilities/8969
third-party-advisory, vdb-entry
-
lists.debian.org
/debian-lts-announce/2017/12/msg00019.html
mailing-list
-
securityfocus.com
/bid/102024
vdb-entry, third-party-advisory
-
wordpress.org
/news/2017/11/wordpress-4-9-1-security-and-maintenance-release/
release-notes
Sources
- CVE List CVE-2017-17091
- NVD CVE-2017-17091
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.