Vulnerability in WordPress
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 allows remote attackers to bypass intended access restrictions by entering this string.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.070 (94.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.070 · newest: 0.070 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.debian.org/security/2018/dsa-4090 (vendor-advisory)
- wpvulndb.com/vulnerabilities/8969 (VDB Entry, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2017/12/msg00019.html (mailing-list)
- www.securityfocus.com/bid/102024 (VDB Entry, Third Party Advisory, vdb-entry)
- codex.wordpress.org/Version_4.9.1 (Patch, Release Notes)
- github.com/WordPress/WordPress/commit/eaf1cfdc1fe0bdffabd8d879c591b864d833326c (Patch)
- wordpress.org/news/2017/11/wordpress-4-9-1-security-and-maintenance-release/ (Release Notes)
Frequently asked questions
- What is CVE-2017-17091?
- CVE-2017-17091 is a high-severity vulnerability in WordPress, classified under Use of Insufficiently Random Values. CVSS score: 8.8/10. Published 2017-12-02.
- How severe is CVE-2017-17091?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2017-17091 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.