High [CVE-2026-73703] Fabric Composer: vulnerability in the web-based management interface of HPE Networking Fabric Composer could allow an unauthenticated adjacent attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface
This high-severity HPE Aruba Networking advisory covers CVE-2026-73703 affecting Fabric Composer.
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Summary
A vulnerability in the web-based management interface of HPE Networking Fabric Composer could allow an unauthenticated adjacent attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface.
A successful exploit could allow an attacker to execute arbitrary script code in a victim's browser in the context of the affected interface.
- Fabric Composer 7.0.0 through 7.3.3
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
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