diff --git a/tpl/tplimpl/embedded/templates/twitter_cards.html b/tpl/tplimpl/embedded/templates/twitter_cards.html
index 14c92274bf1..6f156c7a777 100644
--- a/tpl/tplimpl/embedded/templates/twitter_cards.html
+++ b/tpl/tplimpl/embedded/templates/twitter_cards.html
@@ -1,12 +1,18 @@
-{{- $images := partial "_funcs/get-page-images" . -}}
-{{- with index $images 0 -}}
-
-
-{{- else -}}
-
-{{- end -}}
-
-
+{{- $images := partial "_funcs/get-page-images" . }}
+{{- with index $images 0 }}
+
+
+{{- else }}
+
+{{- end }}
+
+{{- with or .Title site.Title site.Params.title | plainify }}
+
+{{- end }}
+
+{{- with or .Description .Summary site.Params.description | plainify | htmlUnescape | chomp }}
+
+{{- end }}
{{- $twitterSite := "" }}
{{- with site.Params.social }}
diff --git a/tpl/tplimpl/tplimpl_integration_test.go b/tpl/tplimpl/tplimpl_integration_test.go
index b30965be938..41257912d20 100644
--- a/tpl/tplimpl/tplimpl_integration_test.go
+++ b/tpl/tplimpl/tplimpl_integration_test.go
@@ -493,3 +493,80 @@ title: p5
``,
)
}
+
+// Issue 12433
+func TestTwitterCards(t *testing.T) {
+ t.Parallel()
+
+ files := `
+-- hugo.toml --
+capitalizeListTitles = false
+disableKinds = ['rss','sitemap','taxonomy','term']
+[markup.goldmark.renderer]
+unsafe = true
+[params]
+description = "m n and **o** can't."
+[params.social]
+twitter = 'foo'
+-- layouts/_default/list.html --
+{{ template "_internal/twitter_cards.html" . }}
+-- layouts/_default/single.html --
+{{ template "_internal/twitter_cards.html" . }}
+-- content/s1/p1.md --
+---
+title: p1
+images: [a.jpg,b.jpg]
+---
+a b and **c** can't.
+-- content/s1/p2.md --
+---
+title: p2
+---
+d e and **f** can't.
+
+-- content/s1/p3.md --
+---
+title: p3
+summary: g h and **i** can't.
+---
+-- content/s1/p4.md --
+---
+title: p4
+description: j k and **l** can't.
+---
+-- content/s1/p5.md --
+---
+title: p5
+---
+`
+
+ b := hugolib.Test(t, files)
+
+ b.AssertFileContent("public/s1/p1/index.html", `
+
+
+
+
+
+ `,
+ )
+
+ b.AssertFileContent("public/s1/p2/index.html",
+ ``,
+ ``,
+ )
+
+ b.AssertFileContent("public/s1/p3/index.html",
+ ``,
+ )
+
+ // The markdown is intentionally not rendered to HTML.
+ b.AssertFileContent("public/s1/p4/index.html",
+ ``,
+ )
+
+ // The markdown is intentionally not rendered to HTML.
+ b.AssertFileContent("public/s1/p5/index.html",
+ ``,
+ )
+}