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CVE-2021-20280

MEDIUMCVSS 5.4/10EPSS 1.28%

Last modified

CVE-2021-20280 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Text-based feedback answers required additional sanitizing to prevent stored XSS and blind SSRF risks in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.. EPSS estimates a 1.28% chance of exploitation in the next 30 days.

Description

Text-based feedback answers required additional sanitizing to prevent stored XSS and blind SSRF risks in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.

Metrics

CVSS 3.1
5.4/10

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

EPSS Probability
1.28%

66.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MoodleMoodle>= 3.5.0, < 3.5.17
MoodleMoodle>= 3.8.0, < 3.8.8
MoodleMoodle>= 3.9.0, < 3.9.5
MoodleMoodle>= 3.10.0, < 3.10.2
FedoraprojectFedora32
FedoraprojectFedora33
FedoraprojectFedora34

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-20280?
Text-based feedback answers required additional sanitizing to prevent stored XSS and blind SSRF risks in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.
How severe is CVE-2021-20280?
CVE-2021-20280 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 1.28% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20280?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-20280?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST