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Cross-site scripting (XSS) in sessionpriv.php #67
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SergioComeron
added a commit
that referenced
this issue
Feb 3, 2021
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v.2.8.4 prevents code inyections into the name parameter in private sessions. |
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Thank you for the reply. Was this vulnerability highlighted to you before? |
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Never. Lot of thanks! |
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@SergioComeron: Please could you bump up the version number? |
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Sorry, I forgot it. hehe |
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CVE-2021-26812 was assigned to this issue. |
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The parameter "nom" is not filtered properly causing javascript code to be injected.
Moodle Jitsi Plugin XSS POC.pdf
It can be easily triggered by clicking this URL
https://targetdomain.com/mod/jitsi/sessionpriv.php?avatar=https%3A%2F%2Ftargetdomain.com%2Fuser%2Fpix.php%2F498%2Ff1.jpg&nom=test_user%27)%3balert(document.cookie)%3b//&ses=test_user&t=1
replace "targetdomain.com" with any moodle website you know that is using this plugin.
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