XSS in King-Theme Kingcomposer
CVE-2020-15299
A reflected Cross-Site Scripting (XSS) Vulnerability in the KingComposer plugin through 2.9.4 for WordPress allows remote attackers to trick a victim into submitting an install_online_preset AJAX request containing base64-encoded JavaScript (in the kc-online-preset-data POST parameter) that is executed in the victim's browser.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.470 (98.8th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.470 · newest: 0.470 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/blog/2020/07/xss-flaw-impacting-100000-sites-patched-in-kingc… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-15299?
- CVE-2020-15299 is a medium-severity vulnerability in King-Theme Kingcomposer, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-07-09.
- How severe is CVE-2020-15299?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2020-15299 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.