{"id":"CVE-2026-55679","aliases":["EUVD-2026-101621","GHSA-wm6j-4rfm-399q"],"status":"published","title":"WeGIA: Pre-auth Installer Injection Chain Enables Command Execution and Arbitrary PHP Code Injection","description":"WeGIA is a web manager for charitable institutions. Prior to 3.8.6, the pre-installation web/instalador/instalador.php endpoint is reachable before config.php exists and processes unauthenticated installation POST data. In the Linux reinstall flow, a crafted usuario value reaches a command executed by shell_exec(). The installer also writes attacker-controlled values into executable config.php and concatenates the database name nomebd into a CREATE DATABASE statement. Successful exploitation can execute commands as the web-server user, persist attacker-controlled PHP configuration, and alter or disrupt the application and its data. This issue is fixed in version 3.8.6.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00521,"percentile":0.44519,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78","CWE-89","CWE-94"],"published":"2026-10-14T19:44:02Z","modified":"2026-10-28T02:30:58Z","products":[{"vendor":"labredescefetrj","product":"wegia"}],"references":[{"url":"https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-wm6j-4rfm-399q","tags":["x_refsource_CONFIRM","exploit","advisory"]},{"url":"https://github.com/LabRedesCefetRJ/WeGIA/issues/96","tags":["x_refsource_MISC","report"]},{"url":"https://github.com/LabRedesCefetRJ/WeGIA/pull/1705","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/LabRedesCefetRJ/WeGIA/commit/b13c4b0b416d99a8145f583e0893bc8172155469","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/LabRedesCefetRJ/WeGIA/releases/tag/3.8.6","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55679.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55679","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-55679","title":"WeGIA: Pre-auth Installer Injection Chain Enables Command Execution and Arbitrary PHP Code Injection","description":"WeGIA is a web manager for charitable institutions. Prior to 3.8.6, the pre-installation web/instalador/instalador.php endpoint is reachable before config.php exists and processes unauthenticated installation POST data. In the Linux reinstall flow, a crafted usuario value reaches a command executed by shell_exec(). The installer also writes attacker-controlled values into executable config.php and concatenates the database name nomebd into a CREATE DATABASE statement. Successful exploitation can execute commands as the web-server user, persist attacker-controlled PHP configuration, and alter or disrupt the application and its data. This issue is fixed in version 3.8.6.","status":"published","published":"2026-10-14T19:44:02.494Z","modified":"2026-10-20T02:06:11.939Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-78","CWE-89","CWE-94"],"updated_at":"2026-11-02T14:20:11.925815Z"}],"euvd":[{"id":"EUVD-2026-101621","description":"WeGIA is a web manager for charitable institutions. Prior to 3.8.6, the pre-installation web/instalador/instalador.php endpoint is reachable before config.php exists and processes unauthenticated installation POST data. In the Linux reinstall flow, a crafted usuario value reaches a command executed by shell_exec(). The installer also writes attacker-controlled values into executable config.php and concatenates the database name nomebd into a CREATE DATABASE statement. Successful exploitation can execute commands as the web-server user, persist attacker-controlled PHP configuration, and alter or disrupt the application and its data. This issue is fixed in version 3.8.6.","status":"published","published":"2026-10-14T19:44:02Z","modified":"2026-10-20T02:06:11Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L","level":"medium"}],"updated_at":"2026-11-02T16:59:44.419021Z"}],"nvd":[{"id":"CVE-2026-55679","description":"WeGIA is a web manager for charitable institutions. Prior to 3.8.6, the pre-installation web/instalador/instalador.php endpoint is reachable before config.php exists and processes unauthenticated installation POST data. In the Linux reinstall flow, a crafted usuario value reaches a command executed by shell_exec(). The installer also writes attacker-controlled values into executable config.php and concatenates the database name nomebd into a CREATE DATABASE statement. Successful exploitation can execute commands as the web-server user, persist attacker-controlled PHP configuration, and alter or disrupt the application and its data. This issue is fixed in version 3.8.6.","status":"published","published":"2026-10-14T20:17:50.03Z","modified":"2026-10-20T03:17:15.733Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-78","CWE-89","CWE-94"],"updated_at":"2026-11-02T14:12:59.328869Z"}],"osv":[{"id":"CVE-2026-55679","title":"WeGIA: Pre-auth Installer Injection Chain Enables Command Execution and Arbitrary PHP Code Injection","description":"WeGIA is a web manager for charitable institutions. Prior to 3.8.6, the pre-installation web/instalador/instalador.php endpoint is reachable before config.php exists and processes unauthenticated installation POST data. In the Linux reinstall flow, a crafted usuario value reaches a command executed by shell_exec(). The installer also writes attacker-controlled values into executable config.php and concatenates the database name nomebd into a CREATE DATABASE statement. Successful exploitation can execute commands as the web-server user, persist attacker-controlled PHP configuration, and alter or disrupt the application and its data. This issue is fixed in version 3.8.6.","status":"published","published":"2026-10-14T19:44:02.494Z","modified":"2026-10-28T02:30:58.950131711Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L","level":"medium"}],"cwes":["CWE-78","CWE-89","CWE-94"],"updated_at":"2026-11-02T15:45:11.22012Z"}]}}