Vulnerability · Published Apr 14, 2021 · Assigned by Joomla
CVE-2021-26030[20210401] - Core - Escape xss in logo parameter error pages
Medium 6.1
In plain English
A medium-severity security flaw in Joomla! CMS from Joomla! Project. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 82.8% (higher than 99.7% of all known vulnerabilities).
Severity (CVSS NVD)6.1Medium
Exploit odds (30 days)82.8%top 0.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue was discovered in Joomla! 3.0.0 through 3.9.25. Inadequate escaping allowed XSS attacks using the logo parameter of the default templates on error page
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Joomla! Project | Joomla! CMS | 3.0.0-3.9.25 |
References
- https://developer.joomla.org/security-centre/850-20210401-core-escape-xss-in-logo-parameter-error-pages.html x_refsource_MISC, vendor-advisory