CVE-2026-23753 | GFI HelpDesk up to 4.99.8 Languages Page SWIFT_Language::Create charset cross site scripting

VDB-358348 · CVE-2026-23753 · EUVD-2026-23928 GFI HELPDESK UP TO 4.99.8 LANGUAGES PAGE SWIFT_LANGUAGE::CREATE CHARSET CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.5 $0-$5k 4.46+ Summaryinfo A vulnerability was found in GFI HelpDesk up to 4.99.8 and classified as problematic. Affected by this issue is the function SWIFT_Language::Create of the component Languages Page. Executing a manipulation of the argument charset can lead to cross site scripting. This vulnerability appears as CVE-2026-23753. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component. Detailsinfo A vulnerability has been found in GFI HelpDesk up to 4.99.8 and classified as problematic. This vulnerability affects the function SWIFT_Language::Create of the component Languages Page. The manipulation of the argument charset with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. CVE summarizes: GFI HelpDesk before 4.99.9 contains a stored cross-site scripting vulnerability in the language management functionality where the charset POST parameter is passed directly to SWIFT_Language::Create() without HTML sanitization and subsequently rendered unsanitized by View_Language.RenderGrid(). An authenticated administrator can inject arbitrary JavaScript through the charset field when creating or editing a language, and the payload executes in the browser of any administrator viewing the Languages page. The weakness was presented by Alex Williams. The advisory is shared for download at gfi.ai. This vulnerability was named CVE-2026-23753 since 01/15/2026. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are necessary for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007. Upgrading to version 4.99.9 eliminates this vulnerability. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-23928). Productinfo Vendor GFI Name HelpDesk Version 4.99.0 4.99.1 4.99.2 4.99.3 4.99.4 4.99.5 4.99.6 4.99.7 4.99.8 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: 3.6 VulDB Meta Temp Score: 3.5 VulDB Base Score: 2.4 VulDB Temp Score: 2.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 4.8 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: HelpDesk 4.99.9 Timelineinfo 01/15/2026 CVE reserved 04/20/2026 +94 days Advisory disclosed 04/20/2026 +0 days VulDB entry created 04/20/2026 +0 days VulDB entry last update Sourcesinfo Advisory: gfi.ai Researcher: Alex Williams Status: Confirmed CVE: CVE-2026-23753 (🔒) GCVE (CVE): GCVE-0-2026-23753 GCVE (VulDB): GCVE-100-358348 EUVD: 🔒 Entryinfo Created: 04/20/2026 20:15 Updated: 04/20/2026 21:57 Changes: 04/20/2026 20:15 (79), 04/20/2026 21:57 (1) Complete: 🔍 Cache ID: 99:73E:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸