CVE-2020-1692Network attack vector

Service-token disclosure via shared HTML content

Published Feb 17, 2020 · Updated Aug 4, 2024

Information exposure in Moodle LMS before 3.7.2 allows remote authenticated users to obtain service tokens from course peers. Public records identify shared HTML content as the trigger but do not disclose the affected function or the operation that exposes a token. The attacker must be enrolled in the same course and have permission to share HTML content; a recovered token enables access with the victim's web-service privileges.

CVSS severity6.5
Medium
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in Moodle LMS before 3.7.2 allows remote authenticated users to obtain service tokens from course peers. Public records identify shared HTML content as the trigger but do not disclose the affected function or the operation that exposes a token. The attacker must be enrolled in the same course and have permission to share HTML content; a recovered token enables access with the victim's web-service privileges.

The record

CVE
CVE-2020-1692
Published
Feb 17, 2020
Updated
Aug 4, 2024
Vendor
Moodle
Product
Moodle LMS
Classifications
CWE-352, T1528
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 17, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=before 3.7.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Moodle · Moodle LMSversion=before 3.7.2

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
8.1Red Hat, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1528Steal Application Access Token

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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