Vulnerability Details : CVE-2020-1691
In Moodle 3.8, messages required extra sanitizing before updating the conversation overview, to prevent the risk of stored cross-site scripting.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2020-1691
- cpe:2.3:a:moodle:moodle:3.8.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-1691
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 20 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-1691
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.4
|
MEDIUM | CVSS:3.1/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-2020-1691
-
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)
- secalert@redhat.com (Secondary)
References for CVE-2020-1691
-
https://moodle.org/mod/forum/discuss.php?d=395953
Moodle.org: MSA-20-0001: Stored XSS in message conversation overview | Moodle.orgIssue Tracking;Patch;Vendor Advisory
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