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| author | Andrey Andreev <narf@devilix.net> | 2018-03-22 16:00:47 +0100 |
|---|---|---|
| committer | Andrey Andreev <narf@devilix.net> | 2018-03-22 16:00:47 +0100 |
| commit | c243df3af851fe90cd272f3958f7eb7bf76173b1 (patch) | |
| tree | 83e8bda62fe6c5b40b7cd93cbc6c6c3a8214cc03 /system/core/Security.php | |
| parent | f3e19ac4990e1e3fbc6964e97e7e09e506935d6e (diff) | |
| parent | 3d2073e877cb1fddbea8fcec5bc5d38b545cdcfa (diff) | |
Merge branch '3.1-stable' into develop
Conflicts resolved:
system/core/CodeIgniter.php
system/core/Security.php
system/database/DB_query_builder.php
system/libraries/Email.php
user_guide_src/source/changelog.rst
user_guide_src/source/conf.py
user_guide_src/source/installation/downloads.rst
user_guide_src/source/installation/upgrading.rst
Diffstat (limited to 'system/core/Security.php')
| -rw-r--r-- | system/core/Security.php | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/system/core/Security.php b/system/core/Security.php index 091093637..b19a6fb02 100644 --- a/system/core/Security.php +++ b/system/core/Security.php @@ -545,6 +545,14 @@ class CI_Security { $str ); + // Same thing, but for "tag functions" (e.g. eval`some code`) + // See https://github.com/bcit-ci/CodeIgniter/issues/5420 + $str = preg_replace( + '#(alert|prompt|confirm|cmd|passthru|eval|exec|expression|system|fopen|fsockopen|file|file_get_contents|readfile|unlink)(\s*)`(.*?)`#si', + '\\1\\2`\\3`', + $str + ); + // Final clean up // This adds a bit of extra precaution in case // something got through the above filters @@ -907,7 +915,7 @@ class CI_Security { return str_replace( $match[1], preg_replace( - '#href=.*?(?:(?:alert|prompt|confirm)(?:\(|&\#40;)|javascript:|livescript:|mocha:|charset=|window\.|\(?document\)?\.|\.cookie|<script|<xss|d\s*a\s*t\s*a\s*:)#si', + '#href=.*?(?:(?:alert|prompt|confirm)(?:\(|&\#40;|`|&\#96;)|javascript:|livescript:|mocha:|charset=|window\.|\(?document\)?\.|\.cookie|<script|<xss|d\s*a\s*t\s*a\s*:)#si', '', $this->_filter_attributes($match[1]) ), @@ -935,7 +943,7 @@ class CI_Security { return str_replace( $match[1], preg_replace( - '#src=.*?(?:(?:alert|prompt|confirm|eval)(?:\(|&\#40;)|javascript:|livescript:|mocha:|charset=|window\.|\(?document\)?\.|\.cookie|<script|<xss|base64\s*,)#si', + '#src=.*?(?:(?:alert|prompt|confirm|eval)(?:\(|&\#40;|`|&\#96;)|javascript:|livescript:|mocha:|charset=|window\.|\(?document\)?\.|\.cookie|<script|<xss|base64\s*,)#si', '', $this->_filter_attributes($match[1]) ), |