XSS in WordPress
CVE-2018-20153
In WordPress before 4.9.9 and 5.x before 5.0.1, contributors could modify new comments made by users with greater privileges, possibly causing XSS.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.020 (80.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- WordPress
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/106220 (VDB Entry, Third Party Advisory, vdb-entry)
- wordpress.org/support/wordpress-version/version-5-0-1/ (Release Notes, Vendor Advisory)
- codex.wordpress.org/Version_4.9.9 (Product, Release Notes, Vendor Advisory)
- wpvulndb.com/vulnerabilities/9172 (Vendor Advisory)
- www.debian.org/security/2019/dsa-4401 (vendor-advisory, Third Party Advisory)
- wordpress.org/news/2018/12/wordpress-5-0-1-security-release/ (Release Notes, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2019/02/msg00019.html (mailing-list, Third Party Advisory)
- www.zdnet.com/article/wordpress-plugs-bug-that-led-to-google-indexing-some-user… (Third Party Advisory, Press/Media Coverage)
Frequently asked questions
- What is CVE-2018-20153?
- CVE-2018-20153 is a medium-severity vulnerability in WordPress, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-12-14.
- How severe is CVE-2018-20153?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2018-20153 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.