XSS in Wpfront Notification Bar
CVE-2021-24518
The WPFront Notification Bar WordPress plugin before 2.0.0.07176 does not sanitise or escape its Custom CSS setting, allowing high privilege users such as admin to set XSS payload in it even when the unfiltered_html capability is disallowed, leading to an authenticated Stored Cross-Site Scripting issue
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.007 (50.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Wpfront Notification_bar
- Unknown Wpfront Notification Bar — versions 2.0.0.07176
Weakness classification (CWE)
Public proof-of-concept exploits
References
- contact@wpscan.com (Exploit, Third Party Advisory, x_refsource_MISC)
- contact@wpscan.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-24518?
- CVE-2021-24518 is a medium-severity vulnerability in Wpfront Notification Bar, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-08-16.
- How severe is CVE-2021-24518?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2021-24518 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.