PT-2026-22839 · Unknown · Aliasvault
Jorianwoltjer
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Published
2026-03-03
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Updated
2026-03-04
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CVE-2026-26266
CVSS v3.1
9.3
Critical
| Vector | AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |
Name of the Vulnerable Software and Affected Versions
AliasVault versions 0.25.3 and lower
Description
AliasVault is a privacy-first password manager with built-in email aliasing. A stored cross-site scripting (XSS) issue exists in the email rendering feature of the AliasVault Web Client. When viewing received emails on an alias, the HTML content is rendered in an iframe using the
srcdoc attribute, which lacks origin isolation. An attacker can send a crafted email containing malicious JavaScript to any AliasVault email alias. When a victim views the email in the web client, the script executes in the same origin as the application. No sanitization or sandboxing was applied to email HTML content before rendering. The vulnerability is triggered when viewing emails containing malicious JavaScript code. The vulnerable component renders HTML content within an iframe using srcdoc.Recommendations
Update to version 0.26.0 or later.
Exploit
Fix
XSS
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Weakness Enumeration
Related Identifiers
Affected Products
Aliasvault