CVE-2026-104073

NetBox 2.9.5 < 4.7.0 Session Hijacking via Custom Links

Published Oct 6, 2026 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Description
NetBox versions 2.9.5 before 4.7.0 contain a server-side template injection vulnerability that allows a low-privileged user with the "Can add custom links" permission to steal session cookies and API tokens of other users by exposing the raw Django HttpRequest object to the Jinja2 template context. Attackers can craft a custom link template embedding request.COOKIES['sessionid'] or a user's API token into an img src URL, which bypasses the clean_html sanitizer and auto-exfiltrates the victim's credentials to an attacker-controlled host when a privileged user views the object, enabling full account takeover.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Netbox
Netbox netbox
CPEs cpe:2.3:a:netbox:netbox:*:*:*:*:*:*:*:*
Vendors & Products Netbox
Netbox netbox
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Netbox-community
Netbox-community netbox
Vendors & Products Netbox-community
Netbox-community netbox
Type Values Removed Values Added
Description NetBox versions 2.9.5 before 4.7.0 contain a server-side template injection vulnerability that allows a low-privileged user with the "Can add custom links" permission to steal session cookies and API tokens of other users by exposing the raw Django HttpRequest object to the Jinja2 template context. Attackers can craft a custom link template embedding request.COOKIES['sessionid'] or a user's API token into an img src URL, which bypasses the clean_html sanitizer and auto-exfiltrates the victim's credentials to an attacker-controlled host when a privileged user views the object, enabling full account takeover.
Title NetBox 2.9.5 < 4.7.0 Session Hijacking via Custom Links
Weaknesses CWE-668
CWE-79
References
Metrics cvssV3_1

{'score': 7.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:L/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 27, 2026, 1:30 AM
Reserved
Oct 1, 2026, 6:02 PM
Status
Awaiting Analysis
Published
Oct 6, 2026, 7:17 PM
Modified
Oct 7, 2026, 3:16 PM