{"id":"CVE-2026-57232","state":"PUBLISHED","title":"Contao: Server-Side Request Forgery (SSRF) via Unvalidated RSS Feed URL in Feed Reader Module","description":"Contao is an Open Source CMS. From 5.3.35 through 5.3.47 and from 5.7.0-RC1 through 5.7.8, the Feed Reader front-end module passes configured RSS feed URLs from FeedReaderController::getResponse() to feedIo->read() without scheme or private-address validation, allowing a backend user with module-edit permissions to make the server request internal network services, loopback addresses, or cloud metadata endpoints. In core-bundle/src/Controller/FrontendModule/FeedReaderController.php, the getResponse() function iterates over the configured feed URLs and passes each one directly to the HTTP client (via $this->feedIo->read($url, new Feed())) with no validation, while the DCA field definition for rss_feed in tl_module.php carries no URL scheme or host validation and the HTTP client is wired as @psr18.http_client (Symfony HttpClient) with no SSRF protection configured, since NoPrivateNetworkHttpClient is not used. This issue is fixed in versions 5.3.48.","publishedAt":"2026-07-31T18:29:53.924Z","updatedAt":"2026-08-03T17:24:45.798Z","severity":{"score":3.1,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["contao contao"],"affected":[{"vendor":"contao","product":"contao","versions":[{"version":">= 5.7.0-RC1, < 5.7.9","status":"affected"},{"version":">= 5.3.35, < 5.3.48","status":"affected"}]}],"references":["https://github.com/contao/contao/security/advisories/GHSA-87mg-5grr-rhwh","https://github.com/contao/contao/commit/27f6201809553bee767dcef15535bb8f0f4eac5f","https://github.com/contao/contao/commit/53b939ff2c4718e3a1d7c54ddd8886e9370618e4"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/57xxx/CVE-2026-57232.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-57232","state":"PUBLISHED","datePublished":"2026-07-31T18:29:53.924Z","dateUpdated":"2026-08-03T17:24:45.798Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-24T02:21:33.811Z"},"containers":{"cna":{"title":"Contao: Server-Side Request Forgery (SSRF) via Unvalidated RSS Feed URL in Feed Reader Module","descriptions":[{"lang":"en","value":"Contao is an Open Source CMS. From 5.3.35 through 5.3.47 and from 5.7.0-RC1 through 5.7.8, the Feed Reader front-end module passes configured RSS feed URLs from FeedReaderController::getResponse() to feedIo->read() without scheme or private-address validation, allowing a backend user with module-edit permissions to make the server request internal network services, loopback addresses, or cloud metadata endpoints. In core-bundle/src/Controller/FrontendModule/FeedReaderController.php, the getResponse() function iterates over the configured feed URLs and passes each one directly to the HTTP client (via $this->feedIo->read($url, new Feed())) with no validation, while the DCA field definition for rss_feed in tl_module.php carries no URL scheme or host validation and the HTTP client is wired as @psr18.http_client (Symfony HttpClient) with no SSRF protection configured, since NoPrivateNetworkHttpClient is not used. This issue is fixed in versions 5.3.48."}],"affected":[{"vendor":"contao","product":"contao","versions":[{"version":">= 5.7.0-RC1, < 5.7.9","status":"affected"},{"version":">= 5.3.35, < 5.3.48","status":"affected"}]}],"references":[{"url":"https://github.com/contao/contao/security/advisories/GHSA-87mg-5grr-rhwh","name":"https://github.com/contao/contao/security/advisories/GHSA-87mg-5grr-rhwh","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/contao/contao/commit/27f6201809553bee767dcef15535bb8f0f4eac5f","name":"https://github.com/contao/contao/commit/27f6201809553bee767dcef15535bb8f0f4eac5f","tags":["x_refsource_MISC"]},{"url":"https://github.com/contao/contao/commit/53b939ff2c4718e3a1d7c54ddd8886e9370618e4","name":"https://github.com/contao/contao/commit/53b939ff2c4718e3a1d7c54ddd8886e9370618e4","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.1,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-31T18:29:53.924Z"},"source":{"advisory":"GHSA-87mg-5grr-rhwh","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-03T17:23:44.263512Z","id":"CVE-2026-57232","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-03T17:24:45.798Z"}}]}}}