From dda59194269fc70bd1cf5d430bb77bed0fc4d7aa Mon Sep 17 00:00:00 2001 From: Petr Skoda Date: Sun, 5 Mar 2023 10:05:57 +0100 Subject: [PATCH] MDL-76688 filter_text: prevent LaTeX3 syntax --- filter/tex/lib.php | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/filter/tex/lib.php b/filter/tex/lib.php index 12e338569ab..f1c7a3a4d13 100644 --- a/filter/tex/lib.php +++ b/filter/tex/lib.php @@ -70,7 +70,8 @@ function filter_tex_sanitize_formula($texexp) { '\lowercase','\relax','\aftergroup', '\afterassignment','\expandafter','\noexpand','\special', '\let', '\futurelet','\else','\fi','\chardef','\makeatletter','\afterground', - '\noexpand','\line','\mathcode','\item','\section','\mbox','\declarerobustcommand' + '\noexpand','\line','\mathcode','\item','\section','\mbox','\declarerobustcommand', + '\ExplSyntaxOn', ]; $allowlist = ['inputenc'];