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Fix several vulnerabilities (#13927)

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* Escape HTML in the location field of a calendar event post

- This allowed script tags to be interpreted in the post display of an event.

* Add form security token check to /admin/phpinfo module

- This prevents basic XSS attacks against /admin/phpinfo

* Add form security token check to /babel module

- This prevents basic XSS attacks against /babel

* Prevent pass-through for attachments

- This addresses a straightforward Reflected XSS vulnerability if a malicious HTML/Javascript file is attached to a post through upload

* Prevent overwriting cid on event edit

- This allowed to share an event as any other user after zeroing the cid field of an existing event
This commit is contained in:
Hypolite Petovan 2024-02-22 00:53:52 -05:00 • committed by GitHub
parent fc3898fe64
commit 5c5d7eb04f
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8 changed files with 26 additions and 27 deletions
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3
src/Module/Calendar/Event/API.php
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@ -142,7 +142,8 @@ class API extends BaseModule
{
$eventId = !empty($request['event_id']) ? intval($request['event_id']) : 0;
$uid = (int)$this->session->getLocalUserId();
$cid = !empty($request['cid']) ? intval($request['cid']) : 0;
// No overwriting event.cid on edit
$cid = !empty($request['cid']) && !$eventId ? intval($request['cid']) : 0;
$strStartDateTime = Strings::escapeHtml($request['start_text'] ?? '');
$strFinishDateTime = Strings::escapeHtml($request['finish_text'] ?? '');