Vulnerability Details : CVE-2017-17454
Mahara 16.10 before 16.10.7 and 17.04 before 17.04.5 and 17.10 before 17.10.2 have a Cross Site Scripting (XSS) vulnerability when a user enters invalid UTF-8 characters. These are now going to be discarded in Mahara along with NULL characters and invalid Unicode characters. Mahara will also avoid direct $_GET and $_POST usage where possible, and instead use param_exists() and the correct param_*() function to fetch the expected value.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2017-17454
- cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:*
- cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:*
- cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-17454
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 29 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-17454
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:P/A:N |
6.8
|
2.9
|
NIST | |
|
5.4
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST |
CWE ids for CVE-2017-17454
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-17454
-
https://bugs.launchpad.net/mahara/+bug/1732987
Bug #1732987 “Fix user input from direct get post usage” : Bugs : MaharaThird Party Advisory
-
https://mahara.org/interaction/forum/topic.php?id=8149
Security Announcements - Security issue relating to cross-site scripting <16.10.7; <17.04.5; <17.10.2 - Mahara ePortfolio SystemVendor Advisory
-
https://reviews.mahara.org/#/c/8191/
Gerrit Code ReviewVendor Advisory
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