Vulnerability · Published Jun 23, 2021 · Assigned by mitre
CVE-2021-35210
Medium 6.1
In plain English
A medium-severity security flaw in the contao/contao package (Packagist). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 55% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.1Medium
Exploit odds (30 days)0.7%top 45.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | contao/contao | 4.9.16 | GHSA-h58v-c6rf-g9f7 |
| Packagist | contao/contao | 4.11.5 | GHSA-h58v-c6rf-g9f7 |
| Packagist | contao/core-bundle | 4.9.16 | GHSA-h58v-c6rf-g9f7 |
| Packagist | contao/core-bundle | 4.11.5 | GHSA-h58v-c6rf-g9f7 |