CVE-2026-34800 | Endian Firewall 3.3.25 Parameter uplinkeditor.cgi Name cross site scripting

VDB-354900 · CVE-2026-34800 · GCVE-0-2026-34800 ENDIAN FIREWALL 3.3.25 PARAMETER UPLINKEDITOR.CGI NAME CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.9 $0-$5k 0.33+ Summaryinfo A vulnerability classified as problematic was found in Endian Firewall 3.3.25. The impacted element is an unknown function of the file /cgi-bin/uplinkeditor.cgi of the component Parameter Handler. The manipulation of the argument Name results in cross site scripting. This vulnerability is known as CVE-2026-34800. It is possible to launch the attack remotely. No exploit is available. Detailsinfo A vulnerability, which was classified as problematic, was found in Endian Firewall 3.3.25. Affected is an unknown function of the file /cgi-bin/uplinkeditor.cgi of the component Parameter Handler. The manipulation of the argument NAME 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: Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the NAME parameter to /cgi-bin/uplinkeditor.cgi. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page. The weakness was published by Alex Williams. The advisory is shared for download at help.endian.com. This vulnerability is traded as CVE-2026-34800 since 03/30/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. 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. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type Firewall Software Vendor Endian Name Firewall Version 3.3.25 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: 4.9 VulDB Meta Temp Score: 4.9 VulDB Base Score: 3.5 VulDB Temp Score: 3.5 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 6.4 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: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/30/2026 CVE reserved 04/02/2026 +3 days Advisory disclosed 04/02/2026 +0 days VulDB entry created 04/02/2026 +0 days VulDB entry last update Sourcesinfo Advisory: help.endian.com Researcher: Alex Williams Status: Confirmed CVE: CVE-2026-34800 (🔒) GCVE (CVE): GCVE-0-2026-34800 GCVE (VulDB): GCVE-100-354900 Entryinfo Created: 04/02/2026 17:28 Changes: 04/02/2026 17:28 (78) Complete: 🔍 Cache ID: 99:3C4:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸