CVE-2026-40212 | OpenStack Skyline up to 5.0.0/6.0.0/7.0.0 Console Web Interface cross site scripting

VDB-356804 · CVE-2026-40212 · GCVE-0-2026-40212 OPENSTACK SKYLINE UP TO 5.0.0/6.0.0/7.0.0 CONSOLE WEB INTERFACE CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.4 $0-$5k 1.88 Summaryinfo A vulnerability classified as problematic was found in OpenStack Skyline up to 5.0.0/6.0.0/7.0.0. This affects an unknown function of the component Console Web Interface. Such manipulation leads to cross site scripting. This vulnerability is traded as CVE-2026-40212. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised. Detailsinfo A vulnerability was found in OpenStack Skyline up to 5.0.0/6.0.0/7.0.0. It has been rated as problematic. Affected by this issue is an unknown function of the component Console Web Interface. 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. CVE summarizes: OpenStack Skyline before 5.0.1, 6.0.0, and 7.0.0 has a DOM-based Cross-Site Scripting (XSS) vulnerability in the console because document.write is used unsafely, which is relevant in scenarios where administrators use the console web interface to view instance console logs. The advisory is shared for download at bugs.launchpad.net. This vulnerability is handled as CVE-2026-40212 since 04/10/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007. Upgrading to version 5.0.1 eliminates this vulnerability. Productinfo Type Cloud Software Vendor OpenStack Name Skyline Version 5.0 6.0 7.0 License free Website Vendor: https://www.openstack.org/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 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 (MITRE): 🔒 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: Skyline 5.0.1 Timelineinfo 04/10/2026 Advisory disclosed 04/10/2026 +0 days CVE reserved 04/10/2026 +0 days VulDB entry created 04/10/2026 +0 days VulDB entry last update Sourcesinfo Vendor: openstack.org Advisory: bugs.launchpad.net Status: Confirmed CVE: CVE-2026-40212 (🔒) GCVE (CVE): GCVE-0-2026-40212 GCVE (VulDB): GCVE-100-356804 Entryinfo Created: 04/10/2026 10:21 Changes: 04/10/2026 10:21 (65) Complete: 🔍 Cache ID: 99:961:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸