CVE-2026-78849
Published Sep 4, 2026
Modified Sep 8, 2026
Description
Cross Site Scripting vulnerability in Netgate pfSense Plus software versions <= 26.03 pfSense CE software versions <= 2.8.1 allows a remote attacker to execute arbitrary code via the captive_portal_status.widget.php file
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EPSS — Exploit Prediction
0.0026
Probability of exploitation
0.17%
Percentile rank
EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.
References
Frequently Asked Questions
What is CVE-2026-78849? +
Cross Site Scripting vulnerability in Netgate pfSense Plus software versions <= 26.03 pfSense CE software versions <= 2.8.1 allows a remote attacker to execute arbitrary code via the captive_portal_status.widget.php file
How do I check if I'm vulnerable to CVE-2026-78849? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.