CVE-2025-40899 | Nozomi Guardian/CMC up to 25.x Assets Page/Nodes Page cross site scripting

VDB-357689 · CVE-2025-40899 · GCVE-0-2025-40899 NOZOMI GUARDIAN/CMC UP TO 25.X ASSETS PAGE/NODES PAGE CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.1 $0-$5k 2.97+ Summaryinfo A vulnerability has been found in Nozomi Guardian and CMC up to 25.x and classified as problematic. This affects an unknown part of the component Assets Page/Nodes Page. The manipulation leads to cross site scripting. This vulnerability is traded as CVE-2025-40899. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded. Detailsinfo A vulnerability, which was classified as problematic, has been found in Nozomi Guardian and CMC up to 25.x. This issue affects an unknown part of the component Assets Page/Nodes Page. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. The summary by CVE is: A Stored Cross-Site Scripting vulnerability was discovered in the Assets and Nodes functionality due to improper validation of an input parameter. An authenticated user with custom fields privileges can define a malicious custom field containing a JavaScript payload. When the victim views the Assets or Nodes pages, the XSS executes in their browser context, allowing the attacker to perform unauthorized actions as the victim, such as modify application data, disrupt application availability, and access limited sensitive information. The weakness was shared with Nozomi Networks Product Security Team. The advisory is shared at security.nozominetworks.com. The identification of this vulnerability is CVE-2025-40899 since 04/16/2025. The exploitation is known to be easy. The attack may be initiated remotely. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue. Upgrading to version 26.0.0 eliminates this vulnerability. Productinfo Vendor Nozomi Name CMC Guardian Version 25.x 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: 6.2 VulDB Meta Temp Score: 6.1 VulDB Base Score: 3.5 VulDB Temp Score: 3.4 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 8.9 CNA Vector (Nozomi): 🔒 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: Guardian/CMC 26.0.0 Timelineinfo 04/16/2025 CVE reserved 04/15/2026 +364 days Advisory disclosed 04/15/2026 +0 days VulDB entry created 04/15/2026 +0 days VulDB entry last update Sourcesinfo Advisory: security.nozominetworks.com Organization: Nozomi Networks Product Security Team Status: Confirmed CVE: CVE-2025-40899 (🔒) GCVE (CVE): GCVE-0-2025-40899 GCVE (VulDB): GCVE-100-357689 Entryinfo Created: 04/15/2026 11:47 Changes: 04/15/2026 11:47 (77) Complete: 🔍 Cache ID: 99:BBB:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸