Apcupsd 0.3.91_5, as used in pfSense through 2.4.4-RELEASE-p3 and other products, has an XSS issue in apcupsd_status.php.

published 2019-06-03 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-4178

cvss: 6.1; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.6%; EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits: 0; none known

Patch / fix

fixed in 1 links 1

netgate pfsense 2.4.4

github.com/pfsense/FreeBSD-ports@b492c0e commit

Exploit prediction

2.56% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	6.1	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /pfsense/FreeBSD-ports/commit/b492c0ea47aba8dde2f14183e71498ba207594e3
patch, third-party-advisory
redmine.pfsense.org /issues/9556
third-party-advisory
ctrsec.io /index.php/2019/05/28/cve-2019-12584-12585-command-injection-vulnerability-on-pfsense-2-4-4-release-p3/

Sources

CVE List CVE-2019-12584
NVD CVE-2019-12584

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary