CVE-2026-64965Network attack vector

Course content modification via import authorization bypass

Published Aug 20, 2026 · Updated Aug 20, 2026

Missing authorization in ATutor 2.2.4 allows remote authenticated users to alter course tests and questions via import requests. The test and question import handlers accept direct backend requests without confirming that the caller has instructor-level rights for the target course before creating imported assessment content. Student-level enrollment in a course is sufficient to reach the affected endpoints, and the demonstrated impact is unauthorized modification of quiz material within that course rather than broader site takeover.

CVSS severity5.3
Medium
EPSS probability0.28%
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 ATutor 2.2.4 allows remote authenticated users to alter course tests and questions via import requests. The test and question import handlers accept direct backend requests without confirming that the caller has instructor-level rights for the target course before creating imported assessment content. Student-level enrollment in a course is sufficient to reach the affected endpoints, and the demonstrated impact is unauthorized modification of quiz material within that course rather than broader site takeover.

The record

CVE
CVE-2026-64965
Published
Aug 20, 2026
Updated
Aug 20, 2026
Vendor
ATutor
Product
ATutor
Classifications
CWE-862, T1565
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 2026Record 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=2.2.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ATutor · ATutorversion=2.2.4

Published CVSS scores

5.3CERT-PLCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA: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 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-862Missing Authorization
T1565Data Manipulation

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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