CVE-2026-129427

EUVD-2026-125897
Stored XSS via avatar upload chained with an authentication bypass in /Attachments leads to ATO
in Cervantes version v1.3-beta could allow an attacker to execute arbitrary code in another user's browser with elevated privileges
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.7 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
https://www.grayback.es/advisories
https://www.grayback.es/en/advisories