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Bug #80192 session.use_trans_sid brokes JSON encoded HTML string
Submitted: 2020-10-07 04:21 UTC Modified: 2020-10-07 08:21 UTC
Votes:2
Avg. Score:4.5 ± 0.5
Reproduced:2 of 2 (100.0%)
Same Version:0 (0.0%)
Same OS:2 (100.0%)
From: thebetsuno at gmail dot com Assigned:
Status: Verified Package: Output Control
PHP Version: 7.3 OS: Any
Private report: No CVE-ID: None
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 [2020-10-07 04:21 UTC] thebetsuno at gmail dot com 
Description:
------------
Enabled config parameter "session.use_trans_sid" breaks a JSON encoded HTML string.
Bug is reproducible in versions 5.6.40, 7.2.33 and I believe in other versions.

Test script:
---------------
<?php
ini_set("session.use_cookies", 0);
ini_set("session.use_only_cookies", 0);
ini_set("session.use_trans_sid", 1);
header('Content-Type: application/json');
echo json_encode('<a href="/test">test</a>');

Expected result:
----------------
"<a href=\"\/test?PHPSESSID=7siuuuk98ns2lps0v1v251f1k3\">test<\/a>"

Actual result:
--------------
"<a href=\?PHPSESSID=7siuuuk98ns2lps0v1v251f1k3"\/test\">test<\/a>"

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AllCommentsChangesGit/SVN commitsRelated reports
 [2020-10-07 08:21 UTC] cmb@php.net
-Status: Open +Status: Verified -Package: Session related +Package: Output Control -PHP Version: 7.2.34 +PHP Version: 7.3
 [2020-10-07 08:21 UTC] cmb@php.net 
Confirmed: <https://3v4l.org/aRVKl>.
 [2023-08-23 11:22 UTC] truongthaietc50 at gmail dot com 
Setting session.use_trans_sid to true in PHP causes the session ID to be automatically added to URLs when encoding HTML content. This can break JSON-encoded HTML strings because the injected session ID disrupts the JSON structure, leading to parsing errors when decoding the JSON on the client side. It's advisable to disable session.use_trans_sid or handle the session ID injection differently to ensure proper JSON decoding and HTML rendering.(https://github.com.php)(https://www.mayoclinicpatientportals.com/)
 
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