CVE-2021-35955
Medium
Description
Contao >=4.0.0 allows backend XSS via HTML attributes to an HTML field. Fixed in 4.4.56, 4.9.18, 4.11.7.
SeverityMedium
CVSS4.8
Exploit probability—
Product
Contao
PublishedAug 12, 2021
First seenAug 12, 2021
How to fix
Update
- contao contao4.4.56, 4.9.18, 4.11.7 or later
- contao/core-bundle4.4.56, 4.9.18, 4.11.7 or later
- contao/contao4.4.56, 4.9.18, 4.11.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| contao contao | 4.0.0 ≤ v < 4.4.56, 4.5.0 ≤ v < 4.9.18, 4.10.0 ≤ v < 4.11.7 | 4.4.56, 4.9.18, 4.11.7 |
| contao/core-bundlePackagist | 4.0.0 ≤ v < 4.4.56, 4.5.0 ≤ v < 4.9.18, 4.10.0 ≤ v < 4.11.7 | 4.4.56, 4.9.18, 4.11.7 |
| contao/contaoPackagist | 4.0.0 ≤ v < 4.4.56, 4.5.0 ≤ v < 4.9.18, 4.10.0 ≤ v < 4.11.7 | 4.4.56, 4.9.18, 4.11.7 |
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