OPNsense 19.1 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by submitting crafted input to the category parameter. Attackers can send POST requests to firewall_rules_edit.php with script payloads in the category field to execute arbitrary JavaScript in the browsers of other users accessing firewall rule pages.
CVE-2019-25373
Score 6.4 from GitHub Security Advisory published 2026-02-15. NVD baseline CVSS 6.4; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.4
- EG Score
- 6.4(medium)
- EG Risk
- 45(Track)EG Risk 45/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity64% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 10%
- KEV
- Not listed
Published
February 15, 2026
Last Modified
June 17, 2026
References (4)
- disclosure@vulncheckhttps://forum.opnsense.org/index.php?topic=11469.0
- disclosure@vulncheckhttps://opnsense.org
- disclosure@vulncheckhttps://www.exploit-db.com/exploits/46351
- disclosure@vulncheckhttps://www.vulncheck.com/advisories/opnsense-stored-xss-via-firewallruleseditphp
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 4× in last 7d / 33× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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- 2026-05-29 13:50 UTCEG score recompute
- 2026-05-29 13:50 UTCGHSA enrichment
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Frequently asked(5)
What is CVE-2019-25373?
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What is the CVSS score of CVE-2019-25373?
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Dependency Blast Radius
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