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| Rule General Information |
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| Release Date: | 2021-11-10 | |
| Rule Name: | Joomla Core Cross Site Scripting Vulnerability (CVE-2021-26030) | |
| Severity: | ||
| CVE ID: | ||
| Rule Protection Details |
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| 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 | |
| Impact: | An attacker can conduct a cross-site scripting attack to inject malicious client-side scripts into web pages viewed by other users, or to bypass access controls such as the same-origin policy, if affected version is installed. | |
| Affected OS: | Windows, Linux, Others | |
| Reference: | https://developer.joomla.org/security-centre/850-20210401-core-escape-xss-in-logo-parameter-error-pages.html |
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| Solutions |
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| The vendor has released upgrade patches to fix vulnerabilities, please visit: https://developer.joomla.org/security-centre/850-20210401-core-escape-xss-in-logo-parameter-error-pages.html |