ProjeQtor up to 12.4.3 File checkValidFileName cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in ProjeQtor up to 12.4.3. The affected element is the function checkValidFileName of the component File Handler. The manipulation results in cross site scripting. This vulnerability was named CVE-2026-41467. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic has been found in ProjeQtor up to 12.4.3. Affected is the function checkValidFileName of the component File 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. CVE summarizes:

ProjeQtor versions 7.0 through 12.4.3 contain a stored cross-site scripting vulnerability in the file upload functionality where the checkValidFileName() function fails to restrict HTML and HTM file uploads. Authenticated attackers can upload HTML files containing arbitrary JavaScript through the image upload or attachment endpoints, and any user accessing the uploaded file URL will execute the embedded JavaScript in their browser.

The weakness was presented by Yassine Damiri and Noé Susset. The advisory is available at damiri.fr. This vulnerability is traded as CVE-2026-41467 since 04/20/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 12.4.4 eliminates this vulnerability.

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

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

CNA Base Score: 5.4
CNA Vector (VulnCheck): 🔒

CVSSv2info

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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: ProjeQtor 12.4.4

Timelineinfo

04/20/2026 CVE reserved
04/27/2026 +7 days Advisory disclosed
04/27/2026 +0 days VulDB entry created
04/27/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: damiri.fr
Researcher: Yassine Damiri, Noé Susset
Status: Confirmed

CVE: CVE-2026-41467 (🔒)
GCVE (CVE): GCVE-0-2026-41467
GCVE (VulDB): GCVE-100-359838

Entryinfo

Created: 04/27/2026 17:52
Changes: 04/27/2026 17:52 (77)
Complete: 🔍
Cache ID: 216::103

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