XSS in WordPress
CVE-2018-5776
WordPress before 4.9.2 has XSS in the Flash fallback files in MediaElement (under wp-includes/js/mediaelement).
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: 0.020 (80.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.1% 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
Weakness classification (CWE)
Public proof-of-concept exploits
References
- wordpress.org/news/2018/01/wordpress-4-9-2-security-and-maintenance-release/ (Release Notes, Vendor Advisory)
- wpvulndb.com/vulnerabilities/9006 (Third Party Advisory)
- github.com/WordPress/WordPress/commit/3fe9cb61ee71fcfadb5e002399296fcc1198d850 (Patch)
- codex.wordpress.org/Version_4.9.2 (Product, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-5776?
- CVE-2018-5776 is a medium-severity vulnerability in WordPress, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-01-18.
- How severe is CVE-2018-5776?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2018-5776 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.