CVE-2026-41467 | ProjeQtor up to 12.4.3 File checkValidFileName cross site scripting

VDB-359838 · CVE-2026-41467 · GCVE-0-2026-41467 PROJEQTOR UP TO 12.4.3 FILE CHECKVALIDFILENAME CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.4 $0-$5k 0.49+ 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. Productinfo Name ProjeQtor Version 12.4.0 12.4.1 12.4.2 12.4.3 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 Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock 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 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock 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: 99:18E:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸