https://vulnerability.circl.lu/sightings/feed 2026-10-11T15:14:37.828574+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent sightings. https://vulnerability.circl.lu/sighting/95e0919e-5722-4a15-983c-96fa799545b2/export 2026-10-11T15:14:37.854015+00:00 Automation user https://vulnerability.circl.lu/user/automation {"uuid": "95e0919e-5722-4a15-983c-96fa799545b2", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-107844", "type": "seen", "source": "https://gist.github.com/alon710/ec24866e662fce0f18f2e8e0c0e13ac0", "content": "# CVE-2026-107844: CVE-2026-107844: Path Traversal Vulnerability in Contao ImagesController\n\n> **CVSS Score:** 5.3\n> **Published:** 2026-10-09\n> **Full Report:** https://cvereports.com/reports/CVE-2026-107844\n\n## Summary\nA path traversal vulnerability (CWE-22) in Contao CMS allows unauthenticated remote attackers to bypass directory boundary restrictions in ImagesController and access files within the project directory.\n\n## TL;DR\nUnauthenticated path traversal in Contao ImagesController permits arbitrary reading of localized files matching allowed extensions and system directory probing.\n\n## Exploit Status: POC\n\n## Technical Details\n\n- **CWE ID**: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)\n- **CVSS v3.1 Score**: 5.3 (Medium)\n- **CVSS Vector**: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\n- **Attack Vector**: Network (Unauthenticated HTTP/HTTPS GET requests)\n- **EPSS Score**: 0.00312 (22.18th percentile)\n- **Impact**: Partial Information Disclosure / Local File Enumeration\n- **Exploit Status**: Proof of Concept / Public Commit Diffs Available\n- **CISA KEV Status**: Not Listed\n\n## Affected Systems\n\n- Contao CMS 5.0.0 through 5.3.49\n- Contao CMS 5.4.0-RC1 through 5.7.11\n- **Contao CMS**: >= 5.0.0, < 5.3.50 (Fixed in: `5.3.50`)\n- **Contao CMS**: >= 5.4.0-RC1, < 5.7.12 (Fixed in: `5.7.12`)\n\n## Mitigation\n\n- Upgrade Contao CMS dependencies to fixed maintenance releases 5.3.50 or 5.7.12.\n- Enforce Web Application Firewall (WAF) filtering on HTTP request URI parameters for path traversal sequences.\n- Restrict 'contao.image.valid_extensions' configuration to essential image asset types only.\n- Disable application debug mode in production deployment environments to avoid absolute path disclosure.\n\n**Remediation Steps:**\n1. Run 'composer update contao/contao --with-dependencies' in project root environments.\n2. Verify that contao package versions resolved match >= 5.3.50 or >= 5.7.12.\n3. Clear Symfony application caches using 'php vendor/bin/contao-console cache:clear'.\n4. Execute automated or unit tests against ImagesController routes to confirm traversal attempts return HTTP 404.\n\n## References\n\n- [Contao Security Advisory GHSA-mrvp-7wmx-5m4h](https://github.com/contao/contao/security/advisories/GHSA-mrvp-7wmx-5m4h)\n- [Contao Security Fix Commit 867c055122fdf12220f973f862082037b695b9bd](https://github.com/contao/contao/commit/867c055122fdf12220f973f862082037b695b9bd)\n- [Contao Release Notes 5.3.50](https://github.com/contao/contao/releases/tag/5.3.50)\n- [Contao Release Notes 5.7.12](https://github.com/contao/contao/releases/tag/5.7.12)\n- [NVD Vulnerability Detail CVE-2026-107844](https://nvd.nist.gov/vuln/detail/CVE-2026-107844)\n- [CVE Program Record CVE-2026-107844](https://www.cve.org/CVERecord?id=CVE-2026-107844)\n\n\n---\n*Generated by [CVEReports](https://cvereports.com/reports/CVE-2026-107844) - Automated Vulnerability Intelligence*", "creation_timestamp": "2026-10-10T22:30:30.000000Z"} 2026-10-10T22:30:30+00:00 https://vulnerability.circl.lu/sighting/c713993b-602b-4b1a-a1d7-d81c2b0926cb/export 2026-10-11T15:14:37.855877+00:00 Automation user https://vulnerability.circl.lu/user/automation {"uuid": "c713993b-602b-4b1a-a1d7-d81c2b0926cb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-107844", "type": "seen", "source": "https://infosec.exchange/users/cve/statuses/117412612899644209", "content": "CVE-2026-107844 Contao: Path traversal in the images controller Contao is an Open Source CMS. From version 5.0.0 until 5.3.50 and 5.7.12, ImagesController joins the user-controlled {path} parameter to the configured image target directory with Path::join() but does not use Path::isBasePath() to verify that the canonical path remains inside that directory. An unauthenticated request containing encoded parent-directory segments can therefore return files under the project directory through BinaryFileResponse when their names use an extension allowed by contao.image.valid_extensions. The route can also reveal whether arbitrary paths exist, and debug responses can disclose absolute filesystem paths, but paths below the upload directory were not shown to be readable. This issue is fixed in versions 5.3.50 and 5.7.12.\nhttps://www.cve.org/CVERecord?id=CVE-2026-107844https://github.com/contao/contao/security/advisories/GHSA-mrvp-7wmx-5m4hhttps://github.com/contao/contao/commit/867c055122fdf12220f973f862082037b695b9bdhttps://github.com/contao/contao/releases/tag/5.3.50https://github.com/contao/contao/releases/tag/5.7.12#contao#CVE_2026_107844#bot", "creation_timestamp": "2026-10-09T19:31:34.126298Z"} 2026-10-09T19:31:34.126298+00:00