CVE-2020-19203 json
An authenticated Cross-Site Scripting (XSS) vulnerability was found in widgets/widgets/wake_on_lan_widget.php, a component of the pfSense s…
published 2021-07-12 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-11110
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 64%
- public exploits
- 0
- none known
Summary
An authenticated Cross-Site Scripting (XSS) vulnerability was found in widgets/widgets/wake_on_lan_widget.php, a component of the pfSense software WebGUI, on version 2.4.4-p2 and earlier. The widget did not encode the descr (description) parameter of wake-on-LAN entries in its output, leading to a possible stored XSS.
Patch / fix
- netgate pfsense 2.4.4
Exploit prediction
1.05% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
pfsense.org
/download/
product, release-notes, vendor-advisory
-
docs.netgate.com
/pfsense/en/latest/releases/2-4-4-p3.html
vendor-advisory
-
netgate.com
/assets/downloads/advisories/pfSense-SA-19_04.webgui.asc
vendor-advisory
-
gist.github.com
/dharmeshbaskaran/55d546496bfb0ba28117e846d8b785db
third-party-advisory
Sources
- CVE List CVE-2020-19203
- NVD CVE-2020-19203
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