6.1

CVE-2021-43558: fedoraproject extra_packages_for_enterprise_linux Cross-site Scripting

CVSS: 6.1v3.1MediumModified
AliasesUBUNTU-CVE-2021-43558
Published 22-11-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-43558 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in fedoraproject extra_packages_for_enterprise_linux. EPSS estimates a 0.87% chance of exploitation in the next 30 days, higher than 58.2% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (NVD)
EPSS score
0.87%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 22-11-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

A flaw was found in Moodle in versions 3.11 to 3.11.3, 3.10 to 3.10.7, 3.9 to 3.9.10 and earlier unsupported versions. A URL parameter in the filetype site administrator tool required extra sanitizing to prevent a reflected XSS risk.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.87%

Chance of exploitation in the next 30 days

Percentile

58%

Versus all other CVEs

30-day change

0.00 pp

From 0.87% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.87%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Fedoraproject2 products
Moodle1 product
  • moodle≤ 3.8.8 | ≥ 3.9.0, < 3.9.11 | ≥ 3.10.0, < 3.10.8 | ≥ 3.11.0, < 3.11.4
Ubuntu1 product
  • moodleAll versions (No fix recorded)

3 vendors · 4 products

References

4 links