| Package | Affected versions | Patched versions |
|---|---|---|
| contao/core-bundle | ≥ 4.9.0, < 4.13.40≥ 5.0.0-RC1, < 5.3.4 | 4.13.405.3.4 |
| contao | ≥ 4.9.0, < 4.13.40≥ 5.0.0, < 5.3.4 | 4.13.405.3.4 |
If the crawler is set to crawl protected pages, it sends the cookie header to externals URLs.
Update to Contao 4.13.40 or 5.3.4.
Disable crawling protected pages.
https://contao.org/en/security-advisories/session-cookie-disclosure-in-the-crawler
If you have any questions or comments about this advisory, open an issue in contao/contao.
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