CVE-2018-6182: XSS
Mahara 16.10 before 16.10.9 and 17.04 before 17.04.7 and 17.10 before 17.10.4 are vulnerable to bad input when TinyMCE is bypassed by POST packages. Therefore, Mahara should not rely on TinyMCE's code stripping alone but also clean input on the server / PHP side as one can create own packets of POST data containing bad content with which to hit the server.
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID of this security issue?
The vulnerability ID is CVE-2018-6182.
Which versions of Mahara are affected by this vulnerability?
Mahara 16.10 before 16.10.9, 17.04 before 17.04.7, and 17.10 before 17.10.4 are affected.
What is the severity of CVE-2018-6182?
The severity of CVE-2018-6182 is medium, with a CVSS score of 6.1.
How can this vulnerability be exploited?
This vulnerability can be exploited by bypassing TinyMCE through malicious POST packages.
How can this vulnerability be mitigated?
To mitigate this vulnerability, Mahara should not rely solely on TinyMCE's code stripping, but also clean input on the server/PHP side.