En resumen
- CVE-2026-30662 es una vulnerabilidad MEDIO (CVSS 6.5) que afecta a concrete5/concrete5, concrete cms (concretecms).
- Probabilidad de explotación en los próximos 30 días (EPSS): 0.30%, mayor que el 22.6% de las vulnerabilidades.
- Aún no hay una versión corregida: sigue el aviso del fabricante en Referencias.
Description
ConcreteCMS v9.4.7 contains a Denial of Service (DoS) vulnerability in the File Manager component. The 'download' method in 'concrete/controllers/backend/file.php' improperly manages memory when creating zip archives. It uses 'ZipArchive::addFromString' combined with 'file_get_contents', which loads the entire content of every selected file into PHP memory. An authenticated attacker can exploit this by requesting a bulk download of large files, triggering an Out-Of-Memory (OOM) condition that causes the PHP-FPM process to terminate (SIGSEGV) and the web server to return a 500 error.
NVD description
ConcreteCMS v9.4.7 contains a Denial of Service (DoS) vulnerability in the File Manager component. The 'download' method in 'concrete/controllers/backend/file.php' improperly manages memory when creating zip archives. It uses 'ZipArchive::addFromString' combined with 'file_get_contents', which loads the entire content of every selected file into PHP memory. An authenticated attacker can exploit this by requesting a bulk download of large files, triggering an Out-Of-Memory (OOM) condition that causes the PHP-FPM process to terminate (SIGSEGV) and the web server to return a 500 error.
Más vulnerabilidades de concrete5/concrete5
Ver todo →Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free