CVE•Published 2026-08-28•Modified 2026-09-01•1 article on news•5 live references•NVD data
CVE-2026-40541
Vulnerability data via NVD (ingested)
CVSS v3.1
9.0
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
EPSS percentile
39
Exploit Prediction Scoring System · top 61% of all CVEs
Weaknesses (CWE)
Description
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.
Timeline
Published 2026-08-28
Modified 2026-09-01
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-40541Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-40541Censys host search filtered to this CVE id.
grep.app
CVE-2026-40541Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-40541GitHub code search for direct mentions.
Google dork
"CVE-2026-40541" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-40541 on GitHub.