Cross Site Scripting vulnerability in Netgate pfSense Plus software versions <= 26.03 pfSense CE software versions <= 2.8.1 allows a remote attacker… (CVE-2026-78849)
Description
A Cross Site Scripting (XSS) vulnerability exists in Netgate pfSense Plus software versions up to 26.03 and pfSense CE software versions up to 2.8.1. This vulnerability allows a remote attacker to execute arbitrary code via the captive_portal_status.widget.php file. No CVSS score or detailed impact metrics are provided. There is no information about available patches or vendor advisories. No known exploits in the wild have been reported.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-78849 is a Cross Site Scripting (XSS) flaw affecting Netgate pfSense Plus software versions <= 26.03 and pfSense CE software versions <= 2.8.1. It allows remote attackers to execute arbitrary code through the captive_portal_status.widget.php file. The lack of CVSS data and vendor advisory means detailed technical and impact specifics are not available. No patch or mitigation details are provided in the source data.
Potential Impact
The vulnerability permits remote code execution via XSS, which could lead to unauthorized script execution in the context of the affected web interface. This may allow attackers to perform actions on behalf of legitimate users or steal sensitive information accessible through the captive portal status widget. However, no confirmed exploitation or further impact details are documented.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until official fixes are available, restrict access to the captive portal management interface to trusted users only and consider disabling or limiting the use of the captive_portal_status.widget.php feature if feasible.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-r2m4-rg4m-wx6j
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-78849"]
- State
- PUBLISHED
Threat ID: 6a9c264facd9273b49fca182
Added to database: 09/05/2026, 14:25:19 UTC
Last enriched: 09/07/2026, 13:37:47 UTC
Last updated: 10/18/2026, 18:48:24 UTC
Views: 38
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