CVE-2021-20279: fedoraproject fedora Cross-site Scripting
CVSS: 5.4v3.1MediumModified
AliasesUBUNTU-CVE-2021-20279
Published 15-03-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-20279 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in fedoraproject fedora. EPSS estimates a 1.00% chance of exploitation in the next 30 days, higher than 62.3% of scored vulnerabilities.
CVSS score
5.4/10
010
Medium · v3.1 (NVD)EPSS score
1.00%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 15-03-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
The ID number user profile field required additional sanitizing to prevent a stored XSS risk in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 5.4Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NSourcesAll 2 agree
- OSV · UbuntuEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Low 3.5Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
1.00%
Chance of exploitation in the next 30 days
Percentile
62%
Versus all other CVEs
30-day change
0.00 pp
From 1.00% on 21-09-2026
21-09-202621-10-2026
EPSS score1.00%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Fedoraproject1 product
- fedoraEOL32 | 34
Moodle1 product
- moodle≥ 3.5.0, < 3.5.17 | ≥ 3.8.0, < 3.8.8 | ≥ 3.9.0, < 3.9.5 | ≥ 3.10.0, < 3.10.2
Ubuntu1 product
- moodleAll versions (No fix recorded)
3 vendors · 3 products