CVE-2026-26266

CRITICAL

9.3

Description

AliasVault is a privacy-first password manager with built-in email aliasing. A stored cross-site scripting (XSS) vulnerability was identified in the email rendering feature of AliasVault Web Client versions 0.25.3 and lower. When viewing received emails on an alias, the HTML content is rendered in an iframe using srcdoc, which does not provide origin isolation. An attacker can send a crafted email containing malicious JavaScript to any AliasVault email alias. When the 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. This vulnerability is fixed in 0.26.0.[

Details CVE

Score CVSS v3.19.3

SeveriteCRITICAL

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurREQUIRED

Publie3/3/2026

Derniere modification3/5/2026

Sourcenvd

Observations honeypot0

Produits affectes

aliasvault:aliasvault

Faiblesses (CWE)

CWE-79

References

https://github.com/aliasvault/aliasvault/commit/382e2e96fa502891638a48404f6d82dc972ab481(security-advisories@github.com)

https://github.com/aliasvault/aliasvault/releases/tag/0.26.0(security-advisories@github.com)

https://github.com/aliasvault/aliasvault/security/advisories/GHSA-f65p-p65r-g53q(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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