CVE-2016-4923 - CVE House
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Status published High CVE-2016-4923

Junos J-Web: Cross Site Scripting Vulnerability

Vulnerability Description

Insufficient cross site scripting protection in J-Web component in Juniper Networks Junos OS may potentially allow a remote unauthenticated user to inject web script or HTML and steal sensitive data and credentials from a J-Web session and to perform administrative actions on the Junos device. Juniper SIRT is not aware of any malicious exploitation of this vulnerability. Affected releases are Juniper Networks Junos OS 11.4 prior to 11.4R13-S3; 12.1X44 prior to 12.1X44-D60; 12.1X46 prior to 12.1X46-D40; 12.1X47 prior to 12.1X47-D30; 12.3 prior to 12.3R11; 12.3X48 prior to 12.3X48-D20; 13.2X51 prior to 13.2X51-D39, 13.2X51-D40; 13.3 prior to 13.3R9; 14.1 prior to 14.1R6; 14.2 prior to 14.2R6; 15.1 prior to 15.1R3; 15.1X49 prior to 15.1X49-D20; 15.1X53 prior to 15.1X53-D57.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from Juniper Networks

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CVE-2025-6549
Junos OS: SRX Series: J-Web can be exposed on additional interfaces
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CVE-2025-60011
Junos OS and Junos OS Evolved: Optional transitive BGP attribute is modified before propagation to peers causing sessions to flap
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CVE-2025-60010
Junos OS and Junos OS Evolved: Device allows login for user with expired password
Medium 5.3
CVE-2025-60009
Junos Space: CLI Configlet page is vulnerable to reflected cross-site script injection
Medium 5.1
CVE-2025-60007
Junos OS: A specifically crafted 'show chassis' command causes chassisd to crash
Medium 6.8

Affected Vendor

Juniper Networks

View all reports →

Affected Software

Junos OS
Vulnerable Versions:
11.4 prior to 11.4R13-S3, 12.1X44 prior to 12.1X44-D60, 12.1X46 prior to 12.1X46-D40, 12.1X47 prior to 12.1X47-D30, 12.3 prior to 12.3R11, 12.3X48 prior to 12.3X48-D20, 13.2X51 prior to 13.2X51-D39, 13.2X51-D40, 13.3 prior to 13.3R9, 14.1 prior to 14.1R6, 14.2 prior to 14.2R6, 15.1 prior to 15.1R3, 15.1X49 prior to 15.1X49-D20, 15.1X53 prior to 15.1X53-D57

Timeline

Official Publish: October 13th, 2017
Last Modified: September 16th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.