CVE-2022-35650Network attack vector

Arbitrary file read via unchecked import base path

Published Jul 25, 2022 · Updated Aug 3, 2024

Path traversal in Moodle LMS 3.9 through 3.9.14, 3.11 through 3.11.7, and 4.0 through 4.0.1 allows attackers to read files. The Blackboard Six readdata() importer appends the XML assessment baseurl attribute to its temporary directory without PARAM_SAFEPATH cleaning. A teacher, manager, or administrator role can import the crafted lesson question package and disclose files readable by the web server.

CVSS severity7.5
High
EPSS probability49.05%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Moodle LMS 3.9 through 3.9.14, 3.11 through 3.11.7, and 4.0 through 4.0.1 allows attackers to read files. The Blackboard Six readdata() importer appends the XML assessment baseurl attribute to its temporary directory without PARAM_SAFEPATH cleaning. A teacher, manager, or administrator role can import the crafted lesson question package and disclose files readable by the web server.

The record

CVE
CVE-2022-35650
Published
Jul 25, 2022
Updated
Aug 3, 2024
Vendor
Moodle
Product
Moodle LMS
Classifications
CWE-20, CWE-22, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 25, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=Fixed in moodle 4.0.2, moodle 3.11.8, moodle 3.9.15

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Moodle · Moodle LMSversion=Fixed in moodle 4.0.2, moodle 3.11.8, moodle 3.9.15

Published CVSS scores

7.5GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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