CVE-2025-47942Network attack vector

Course answer disclosure via unguarded asset download

Published May 21, 2025 · Updated May 22, 2025

Missing authorization in Open edX Platform before 6740e75c0fdc7ba095baf88e9f5e4f3e15cfd8ba allows remote attackers to download python_lib.zip. The contentserver asset path treats an unlocked course code library as public because is_user_authorized performs no filename-specific permission check. A course must use custom Python-graded problem blocks; disclosure is limited to the library's grading code and problem answers.

CVSS severity5.3
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Open edX Platform before 6740e75c0fdc7ba095baf88e9f5e4f3e15cfd8ba allows remote attackers to download python_lib.zip. The contentserver asset path treats an unlocked course code library as public because is_user_authorized performs no filename-specific permission check. A course must use custom Python-graded problem blocks; disclosure is limited to the library's grading code and problem answers.

The record

CVE
CVE-2025-47942
Published
May 21, 2025
Updated
May 22, 2025
Vendor
Open edX
Product
Open edX Platform
Classifications
CWE-862, T1213
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 21, 2025CVE publishedPublication date reported by the CVE source.
  2. May 22, 2025Record 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=< 6740e75c0fdc7ba095baf88e9f5e4f3e15cfd8ba

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Open edX · Open edX Platformversion=< 6740e75c0fdc7ba095baf88e9f5e4f3e15cfd8ba

Published CVSS scores

5.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1213Data from Information Repositories

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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