TI-2023-21022 Aliases CVE-2023-40143 GHSA-7xgh-8hg2-6j33

Cross-site scripting in Westermo Lynx

LOW 24CWE-79Published 2024-02-06 · Updated 2024-08-02

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

An attacker with access to the Westermo Lynx web application that has the vulnerable software could introduce arbitrary JavaScript by injecting a cross-site scripting payload into the "forward.0.domain" parameter.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00294 22nd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Westermo	Lynx	L206-F2G1; 4.24	—	No fix listed	CNA

Lynx VendorWestermo Affected L206-F2G1; 4.24 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:westermo:l206-f2g_firmware:4.24:::::::*	4.24	Vulnerable	Westermo
cpe:2.3:h:westermo:l206-f2g:-:::::::*	not specified by NVD	Running on	Westermo

cpe:2.3:o:westermo:l206-f2g_firmware:4.24:*:*:*:*:*:*:* Versions 4.24 Vulnerable ·Westermo
cpe:2.3:h:westermo:l206-f2g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Westermo

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-40143
2026-10-03 Alias added: GHSA-7xgh-8hg2-6j33

References

Advisory 1

https://www.cisa.gov/news-events/ics-advisories/icsa-24-023-04

TI-2023-19952 Westermo Lynx 206-F2G Cross-Site Request Forgery CVSS 3.1HIGH 8.8
TI-2023-24511 Westermo Lynx Code Injection CVSS 3.1HIGH 8.0
TI-2023-24222 Westermo Lynx Permissive Cross-domain Policy with Untrusted Domains CVSS 3.1MEDIUM 6.6
TI-2023-21349 Westermo Lynx Cleartext Transmission of Sensitive Information CVSS 3.1MEDIUM 5.7
TI-2023-24232 Westermo Lynx Cross-site Scripting CVSS 3.1MEDIUM 5.4
TI-2023-24228 Westermo Lynx Cross-site Scripting CVSS 3.1MEDIUM 5.4

See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences