What’s Vulnerable › Vulnerabilities

CVE-2021-23125: [20210103] - Core - XSS in com_tags image parameters

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-01-12 · updated 2026-06-17
• Weakness: CWE-79

Description

An issue was discovered in Joomla! 3.1.0 through 3.9.23. The lack of escaping of image-related parameters in multiple com_tags views cause lead to XSS attack vectors.

Affected products

• Joomla!: from 3.1.0 through 3.9.23

References

• https://developer.joomla.org/security-centre/838-20210103-core-xss-in-com-tags-image-parameters.html
• https://developer.joomla.org/security-centre/838-20210103-core-xss-in-com-tags-image-parameters.html

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