CVE-2026-40541

critical · 9

An improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in extract domain in Synology Chat Server before 2.4.5-22148 allows remote authenticated users, via a UI interaction, to read or write arbitrary files and conduct denial-of-service attacks in DSM.

CVSS

0.5%

EPSS (exploit prob.)

42nd

EPSS percentile

2026-08-28

Published

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

Weaknesses

CWE-79

References

https://www.synology.com/en-global/security/advisory/Synology_SA_26_10

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-40541