A persistent cross site scripting vulnerability in NetScreen WebUI of Juniper Networks Juniper NetScreen Firewall+VPN running ScreenOS allows a user with the 'security' role to inject HTML/JavaScript content into the management session of other users including the administrator. This enables the lower-privileged user to effectively execute commands with the permissions of an administrator. This issue affects Juniper Networks ScreenOS 6.3.0 releases prior to 6.3.0r24 on SSG Series. No other Juniper Networks products or platforms are affected by this issue.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.4, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 1 product from juniper organizations running these solutions should prioritize assessment and patching.
First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2017-07-17T13:18:24.127
2025-04-20T01:37:25.860
Deferred
CVSSv3.0: 8.4 (HIGH)
AV:N/AC:M/Au:S/C:N/I:P/A:N
6.8
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
| Operating System | juniper | screenos | 6.3.0 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For juniper's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.