themeum Tutor LMS Plugin up to 3.9.13 on WordPress Attachments cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00-

Summaryinfo

A vulnerability identified as problematic has been detected in themeum Tutor LMS Plugin up to 3.9.13 on WordPress. Affected by this vulnerability is an unknown functionality of the component Attachments Handler. Performing a manipulation results in cross site scripting. This vulnerability is identified as CVE-2026-13443. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in themeum Tutor LMS Plugin up to 3.9.13 on WordPress. This affects some unknown functionality of the component Attachments Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Lesson Attachment Title in all versions up to, and including, 3.9.13 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The weakness was released by skyv3il. It is possible to read the advisory at wordfence.com. This vulnerability is uniquely identified as CVE-2026-13443 since 06/26/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 3.9.13 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.9

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.4
CNA Vector (Wordfence): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Tutor LMS Plugin 3.9.13

Timelineinfo

06/26/2026 CVE reserved
07/01/2026 +5 days Advisory disclosed
07/01/2026 +0 days VulDB entry created
07/01/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: wordfence.com
Researcher: skyv3il
Status: Confirmed

CVE: CVE-2026-13443 (🔒)
GCVE (CVE): GCVE-0-2026-13443
GCVE (VulDB): GCVE-100-375111

Entryinfo

Created: 07/01/2026 07:49
Changes: 07/01/2026 07:49 (67)
Complete: 🔍
Cache ID: 216::103

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