CVE-2021-26030

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
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
JoomlaCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 97%
VendorProductVersion
joomlajoomla\!
3.0.0 ≤
𝑥
≤ 3.9.25
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://developer.joomla.org/security-centre/850-20210401-core-escape-xss-in-logo-parameter-error-pages.html
https://developer.joomla.org/security-centre/850-20210401-core-escape-xss-in-logo-parameter-error-pages.html