VulnerabilityAnalyzed

CVE-2019-25369

OPNsense 19.1 contains a stored cross-site scripting vulnerability in the system_advanced_sysctl.php endpoint that allows attackers to inject persistent malicious scripts via the tunable parameter.

MEDIUM 5.1EPSS 0.20%

Does this matter?

Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own.

Description

OPNsense 19.1 contains a stored cross-site scripting vulnerability in the system_advanced_sysctl.php endpoint that allows attackers to inject persistent malicious scripts via the tunable parameter. Attackers can submit POST requests with script payloads that are stored and executed in the context of authenticated user sessions when the page is viewed.

CVSS 4.0: 5.1 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/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/M
EPSS: 0.20% probability · 10th percentile
CISA KEV: Not listed
Weakness: CWE-79
Affected: opnsense/opnsense
Source: disclosure@vulncheck.com

References

https://forum.opnsense.org/index.php?topic=11469.0Release Notes
https://opnsense.orgProduct
https://www.exploit-db.com/exploits/46351Exploit, Third Party Advisory, VDB Entry
https://www.vulncheck.com/advisories/opnsense-stored-xss-via-systemadvancedsysctlphpBroken Link

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.