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CVE-2019-25368

19
FAUCET Score

CVE-2019-25368 describes multiple cross-site scripting (XSS) vulnerabilities in OPNsense 19.1, specifically within the diag_backup.php endpoint. Attackers can inject malicious scripts via various parameters in POST requests, leading to arbitrary JavaScript execution in authenticated administrator sessions. With a CVSS score of 5.4 (Medium), this vulnerability requires user interaction and authenticated access, but can result in partial loss of confidentiality and integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
19.1CPE matchmatch criteria
cpe:2.3:a:opnsense:opnsense:19.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

4.8MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
ACTIVE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
NONE
SS Confidentiality
LOW
SS Integrity
LOW
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.13%
Probability of exploitation in next 30 days
EPSS Percentile
3.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0013 is in the 1st percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

forum.opnsense.org / index.php
Release Notes
opnsense.org
Product
exploit-db.com / exploits/46351
ExploitThird Party AdvisoryVDB Entry
vulncheck.com / advisories/opnsense-reflected-xss-via-diagbackupphp
Broken Link