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Core Rule Set: a Ghost post's or page's canonical URL passes with a command or a file in it (closes #374)
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While bodies are read, 932120 refused the canonical URL
`https://example.com/blog/powershell/` and 930120 refused
`https://example.com/blog/.htaccess/`. The new exclusions 900383 and 900384
switch both rules off for `posts.N.canonical_url` under
`/ghost/api/admin/posts/` and `pages.N.canonical_url` under
`/ghost/api/admin/pages/`, as `url` does, and only when the query has no field
of that name. Two saves recorded from Ghost 6.76.0 are added to the recorded
requests.

Model: opus-5-5
This commit is contained in:
clawbot committed 2026-11-12 06:35:33 +00:00
1 parent aaa9719f02
commit 7a5e942768
4 files changed
+56 -6
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internal/coreruleset/ghost.conf
+17
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@@ -216,6 +216,23 @@ SecRule REQUEST_FILENAME "@beginsWith /ghost/api/admin/" \
SecRule &ARGS_GET:/^json\.(?:(?:posts|pages)\.\d+\.(?:lexical|mobiledoc|html|codeinjection_(?:head|foot))|settings\.\d+\.value)$/ "@eq 0" \
"ctl:ruleRemoveTargetById=941110;ARGS:/^json\.(?:(?:posts|pages)\.\d+\.(?:lexical|mobiledoc|html|codeinjection_(?:head|foot))|settings\.\d+\.value)$/"
# The canonical URL of a post or a page skips the two rules that url skips:
# 930120: https://example.com/blog/.htaccess/
# 932120: https://example.com/blog/powershell/
# Each of these fields skips them only on its own path:
# posts.<n>.canonical_url, under /ghost/api/admin/posts/
# pages.<n>.canonical_url, under /ghost/api/admin/pages/
SecRule REQUEST_FILENAME "@beginsWith /ghost/api/admin/posts/" \
"id:900383,phase:1,pass,nolog,chain"
SecRule &ARGS_GET:/^json\.posts\.\d+\.canonical_url$/ "@eq 0" \
"ctl:ruleRemoveTargetById=930120;ARGS:/^json\.posts\.\d+\.canonical_url$/,\
ctl:ruleRemoveTargetById=932120;ARGS:/^json\.posts\.\d+\.canonical_url$/"
SecRule REQUEST_FILENAME "@beginsWith /ghost/api/admin/pages/" \
"id:900384,phase:1,pass,nolog,chain"
SecRule &ARGS_GET:/^json\.pages\.\d+\.canonical_url$/ "@eq 0" \
"ctl:ruleRemoveTargetById=930120;ARGS:/^json\.pages\.\d+\.canonical_url$/,\
ctl:ruleRemoveTargetById=932120;ARGS:/^json\.pages\.\d+\.canonical_url$/"
# Saving a staff user's profile sends the field profile_image, whose name holds
# .profile, a file the list of system files names (930120).
SecRule REQUEST_FILENAME "@rx ^/ghost/api/admin/users/[0-9a-f]{24}/$" \