CVE-2026-21719 | CubeCart up to 6.5.x os command injection (EUVD-2026-23366)

VDB-358023 · CVE-2026-21719 · EUVD-2026-23366 CUBECART UP TO 6.5.X OS COMMAND INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.8 $0-$5k 4.94+ Summaryinfo A vulnerability, which was classified as critical, has been found in CubeCart up to 6.5.x. The affected element is an unknown function. Performing a manipulation results in os command injection. This vulnerability was named CVE-2026-21719. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component. Detailsinfo A vulnerability, which was classified as critical, was found in CubeCart up to 6.5.x. This affects an unknown functionality. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is: An OS command injection vulnerability exists in CubeCart prior to 6.6.0, which may allow a user with an administrative privilege to execute an arbitrary OS command. It is possible to read the advisory at community.cubecart.com. This vulnerability is uniquely identified as CVE-2026-21719 since 04/13/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are necessary for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK. Upgrading to version 6.6.0 eliminates this vulnerability. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-23366). Productinfo Type E-Commerce Management Software Name CubeCart Version 6.0 6.1 6.2 6.3 6.4 6.5 License open-source 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: 5.9 VulDB Meta Temp Score: 5.8 VulDB Base Score: 4.7 VulDB Temp Score: 4.5 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 7.2 CNA Vector (jpcert): 🔒 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: Os command injection CWE: CWE-78 / CWE-77 / 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: CubeCart 6.6.0 Timelineinfo 04/13/2026 CVE reserved 04/17/2026 +4 days Advisory disclosed 04/17/2026 +0 days VulDB entry created 04/17/2026 +0 days VulDB entry last update Sourcesinfo Advisory: community.cubecart.com Status: Confirmed CVE: CVE-2026-21719 (🔒) GCVE (CVE): GCVE-0-2026-21719 GCVE (VulDB): GCVE-100-358023 EUVD: 🔒 Entryinfo Created: 04/17/2026 07:42 Updated: 04/17/2026 08:44 Changes: 04/17/2026 07:42 (75), 04/17/2026 08:44 (1) Complete: 🔍 Cache ID: 99:2AB:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸