What is CVE-2020-1755?

CVE-2020-1755 is a medium-severity vulnerability in Moodle, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.3/10. Published 2022-08-16.

How severe is CVE-2020-1755?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2020-1755 known to be exploited?

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

Vulnerability in Moodle

CVE-2020-1755

In Moodle before 3.8.2, 3.7.5, 3.6.9 and 3.5.11, X-Forwarded-For headers could be used to spoof a user's IP, in order to bypass remote address checks.

EPSS: 0.005 (39.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Moodle
N/a Moodle — versions 3.8 to 3.8.1, 3.7 to 3.7.4, 3.6 to 3.6.8, 3.5 to 3.5.10 and earlier unsupported versions

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2020-1755?: CVE-2020-1755 is a medium-severity vulnerability in Moodle, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.3/10. Published 2022-08-16.
How severe is CVE-2020-1755?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2020-1755 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.