Medium severity · published Mar 11, 2022
CVE-2021-32478
The redirect URI in the LTI authorization endpoint required extra sanitizing to prevent reflected XSS and open redirect risks
6.1
CVSS
1.1%
EPSS
No
On KEV
Description
The redirect URI in the LTI authorization endpoint required extra sanitizing to prevent reflected XSS and open redirect risks. Moodle versions 3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8 and earlier unsupported versions are affected.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MO
Moodle · Moodle
before 3.8.9; 3.9.0 before 3.9.7; 3.10.0 before 3.10.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-32478
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-32478
Patch
https://moodle.org/mod/forum/discuss.php?d=422314
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