CVE-2021-35210

Contao 4.5.x through 4.9.x before 4.9.16, and 4.10.x through 4.11.x before 4.11.5, allows XSS. It is possible to inject code into the tl_log table that will be executed in the browser when the system log is called in the back end.
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
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 54%
VendorProductVersion
contaocontao
4.5.0 ≤
𝑥
< 4.9.16
contaocontao
4.10.0 ≤
𝑥
< 4.11.5
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://contao.org/en/security-advisories/cross-site-scripting-in-the-system-log-2021.html
https://github.com/contao/contao/security/advisories/GHSA-h58v-c6rf-g9f7
https://contao.org/en/security-advisories/cross-site-scripting-in-the-system-log-2021.html
https://github.com/contao/contao/security/advisories/GHSA-h58v-c6rf-g9f7