CVE-2019-16931: themeisle visualizer Cross-site Scripting
Vulnerability summary
CVE-2019-16931 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in themeisle visualizer. EPSS estimates a 3.34% chance of exploitation in the next 30 days, higher than 88.5% of scored vulnerabilities. 2 public exploits are recorded. Fixed in 3.3.1.
Timeline
- 03-10-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
A stored XSS vulnerability in the Visualizer plugin 3.3.0 for WordPress allows an unauthenticated attacker to execute arbitrary JavaScript when an admin or other privileged user edits the chart via the admin dashboard. This occurs because classes/Visualizer/Gutenberg/Block.php registers wp-json/visualizer/v1/update-chart with no access control, and classes/Visualizer/Render/Page/Data.php lacks output sanitization.
CVSS metrics
3 scores · 2 sources · 2 versions- wordfenceSource6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
3.34%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
0.00 pp
From 3.34% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (wpvulndb.com)
Maturity: unknown
Exploit Reference (nathandavison.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Themeisle1 product
- visualizer≤ 3.3.0
Wordpress1 product
- visualizer≤ 3.3.0 (fixed in 3.3.1)
2 vendors · 2 products
References
4 links- nathandavison.com/blog/wordpress-visualizer-plugin-xss-and-ssrfX Refsource MISCExploitThird Party Advisory