I have recently upgrade from 3.8.0 Moodle to the last version.
My host company suspended my account telling me that they received below security warnings from their firewall.
I really dont understand what are these & how to solve.
My website is down & I am frustrated.
this is the log which they sent to me:
Scanning /home/expertac/public_html: '/home/expertac/public_html/moodle/admin/tool/installaddon/tests/installer_test.php' Regular expression match = [\n(?!\s*(//|\#|\*)).*/etc/passwd] '/home/expertac/public_html/moodle/admin/tool/installaddon/tests/fixtures/testable_installer.php' Regular expression match = [\n(?!\s*(//|\#|\*)).*/etc/passwd] '/home/expertac/public_html/moodle/backup/converter/moodle1/tests/moodle1_converter_test.php' Regular expression match = [\n(?!\s*(//|\#|\*)).*/etc/passwd] '/home/expertac/public_html/moodle/cache/stores/redis/version.php' Script version check [OLD] [Moodle v3.0.4 (Build: 20160509) < v3.8.2] '/home/expertac/public_html/moodle/enrol/autoenrol/version.php' Script version check [OLD] [Moodle v2.1.1 < v3.8.2] '/home/expertac/public_html/moodle/filter/oembed/version.php' Script version check [OLD] [Moodle v3.8.0 (Build - 2019112600) < v3.8.2] '/home/expertac/public_html/moodle/filter/tex/mimetex.exe' MS Windows Binary/Executable [application/x-winexec] '/home/expertac/public_html/moodle/filter/tex/mimetex.freebsd' Linux Binary/Executable [application/x-executable] '/home/expertac/public_html/moodle/filter/tex/mimetex.linux' Linux Binary/Executable [application/x-executable] '/home/expertac/public_html/moodle/lib/antivirus/clamav/classes/scanner.php' Regular expression match = [\n(?!\s*(//|\#|\*)).*/etc/passwd] '/home/expertac/public_html/moodle/lib/behat/classes/behat_config_manager.php' Regular expression match = [symlink\s*\(] '/home/expertac/public_html/moodle/lib/editor/tinymce/version.php' Script version check [OLD] [Moodle v3.5.11 < v3.8.2] '/home/expertac/public_html/moodle/lib/tcpdf/include/tcpdf_fonts.php' Regular expression match = [symlink\s*\(] '/home/expertac/public_html/moodle/lib/tests/filestorage_zip_archive_test.php' Regular expression match = [\n(?!\s*(//|\#|\*)).*/etc/passwd] '/home/expertac/public_html/moodle/lib/tests/moodlelib_test.php' Regular expression match = [\b0day] '/home/expertac/public_html/moodle/lib/tests/scss_test.php' Regular expression match = [\n(?!\s*(//|\#|\*)).*/etc/passwd] '/home/expertac/public_html/moodle/lib/tests/upgradelib_test.php' Universal decode regex match = [universal decoder] '/home/expertac/public_html/moodle/local/contact/version.php' Script version check [OLD] [Moodle v1.0.0 < v3.8.2] '/home/expertac/public_html/wp-content/languages' World writeable directory '/home/expertac/public_html/wp-content/languages/plugins' World writeable directory