XSS in WordPress
CVE-2017-5490
Cross-site scripting (XSS) vulnerability in the theme-name fallback functionality in wp-includes/class-wp-theme.php in WordPress before 4.7.1 allows remote attackers to inject arbitrary web script or HTML via a crafted directory name of a theme, related to wp-admin/includes/class-theme-installer-skin.php.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.024 (83.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/95402 (vdb-entry)
- www.debian.org/security/2017/dsa-3779 (vendor-advisory)
- wpvulndb.com/vulnerabilities/8718
- www.mehmetince.net/low-severity-wordpress/ (Technical Description, Third Party Advisory)
- github.com/WordPress/WordPress/commit/ce7fb2934dd111e6353784852de8aea2a938b359 (Patch)
- codex.wordpress.org/Version_4.7.1 (Release Notes, Vendor Advisory)
- www.openwall.com/lists/oss-security/2017/01/14/6 (mailing-list, Mailing List, Third Party Advisory)
- www.securitytracker.com/id/1037591 (vdb-entry)
- wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2017-5490?
- CVE-2017-5490 is a medium-severity vulnerability in WordPress, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-01-15.
- How severe is CVE-2017-5490?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2017-5490 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.