XSS in Yellowpencil Visual CSS Style Editor
CVE-2021-24934
The Visual CSS Style Editor WordPress plugin before 7.5.4 does not sanitise and escape the wyp_page_type parameter before outputting it back in an admin page, leading to a Reflected Cross-Site Scripting issue
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.014 (69.6th percentile) — read the EPSS interpretation.
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.
Affected products
- Yellowpencil Visual_css_style_editor
- Unknown Visual Css Style Editor — versions 7.5.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- contact@wpscan.com (Exploit, Third Party Advisory, x_refsource_MISC)
- contact@wpscan.com (x_refsource_CONFIRM, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-24934?
- CVE-2021-24934 is a medium-severity vulnerability in Yellowpencil Visual CSS Style Editor, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-02-01.
- How severe is CVE-2021-24934?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2021-24934 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.