What is CVE-2020-25628?

CVE-2020-25628 is a medium-severity vulnerability in Moodle, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-12-08.

How severe is CVE-2020-25628?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2020-25628 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Moodle

CVE-2020-25628

The filter in the tag manager required extra sanitizing to prevent a reflected XSS risk. This affects 3.9 to 3.9.1, 3.8 to 3.8.4, 3.7 to 3.7.7, 3.5 to 3.5.13 and earlier unsupported versions. Fixed in 3.9.2, 3.8.5, 3.7.8 and 3.5.14.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.010 (58.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Moodle
N/a Moodle — versions 3.9 to 3.9.1, 3.8 to 3.8.4, 3.7 to 3.7.7

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

secalert@redhat.com (Patch, Mailing List, x_refsource_MISC, Vendor Advisory)
secalert@redhat.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2020-25628?: CVE-2020-25628 is a medium-severity vulnerability in Moodle, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-12-08.
How severe is CVE-2020-25628?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2020-25628 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.