Tutor LMS <= 3.9.7 - Missing Authorization to Unauthenticated Arbitrary Billing Profile Overwrite via 'order_id' Parameter

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Summary

CVECVE-2026-3360
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-10 02:16:03 UTC
Updated2026-04-10 02:16:03 UTC
DescriptionThe Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to an Insecure Direct Object Reference in all versions up to, and including, 3.9.7. This is due to missing authentication and authorization checks in the `pay_incomplete_order()` function. The function accepts an attacker-controlled `order_id` parameter and uses it to look up order data, then writes billing fields to the order owner's profile (`$order_data->user_id`) without verifying the requester's identity or ownership. Because the Tutor nonce (`_tutor_nonce`) is exposed on public frontend pages, this makes it possible for unauthenticated attackers to overwrite the billing profile (name, email, phone, address) of any user who has an incomplete manual order, by sending a crafted POST request with a guessed or enumerated `order_id`.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS: 0.001020000 probability, percentile 0.280310000 (date 2026-04-11)

Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Themeum Tutor LMS ELearning And Online Course Solution affected 3.9.7 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/tutor/trunk/ecommerce/CheckoutController.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Tutor.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/ecommerce/CheckoutController.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/ecommerce/CheckoutController.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/7f365519-dd0a-4f39-880d-7216c... [email protected] www.wordfence.com
plugins.trac.wordpress.org/changeset/3496394/tutor/trunk/ecommerce/CheckoutController.php [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Supakiad S. (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-02-27T20:06:17.000ZVendor Notified
CNA2026-04-09T12:40:11.000ZDisclosed
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