CVE-2026-26266 describes a stored cross-site scripting (XSS) vulnerability in AliasVault Web Client versions 0.25.3 and lower, affecting its email rendering feature. An attacker can send a specially crafted email containing malicious JavaScript to an AliasVault email alias, which executes within the application's origin when viewed by the victim. This medium-severity vulnerability (CVSS 6.1) has a network attack vector, low attack complexity, and requires user interaction, potentially leading to limited confidentiality and integrity impacts. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.26.0CPE matchmatch criteria | cpe:2.3:a:aliasvault:aliasvault:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
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