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fix(comments): HTML escape emoji alt text to prevent attribute injection

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Test User 2026-08-08 15:16:32 -04:00
parent b313d2cf71
commit 2ea9a8e6d9
1 changed files with 1 additions and 1 deletions
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src/invidious/comments/content.cr
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@ -64,7 +64,7 @@ def content_to_comment_html(content, video_id : String? = "")
# check for custom emojis
if run["emoji"]?
if emoji_image = run.dig?("emoji", "image")
emoji_alt = emoji_image.dig?("accessibility", "accessibilityData", "label").try &.as_s || text
emoji_alt = HTML.escape(emoji_image.dig?("accessibility", "accessibilityData", "label").try(&.as_s) || text)
emoji_thumb = emoji_image["thumbnails"][0]
text = String.build do |str|
str << %(<img alt=") << emoji_alt << "\" "