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CVE-2021-32473

19
FAUCET Score

CVE-2021-32473 describes an information disclosure vulnerability in Moodle versions 3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8, and 3.5 to 3.5.17, allowing students to view quiz grades prematurely via a quiz web service. This medium-severity vulnerability (CVSS 5.3) has a low impact, primarily affecting confidentiality by revealing sensitive information without authorization. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion, indicating a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.5.18CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
>= 3.8.0, < 3.8.9CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
>= 3.9.0, < 3.9.7CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
>= 3.10.0, < 3.10.4CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.02%
Probability of exploitation in next 30 days
EPSS Percentile
59.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0102 is in the 37th percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 3.5.18
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 3.8.9
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 3.9.7
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 3.10.4

Vendor Advisories (1)

composerGHSA-wx87-h539-4775medium

Moodle Information Disclosure vulnerability

Mar 12, 2022

References

moodle.org / mod/forum/discuss.php
PatchVendor Advisory