CVE-2025-10466Network attack vector

Administrator file access via undisclosed cross-site scripting

Published May 27, 2026 · Updated May 27, 2026

Cross-site scripting in Synology Safe Access before 1.3.1-0329 allows remote authenticated users to read or write limited files. Synology has not disclosed the affected code locus or how untrusted input is incorporated into generated web content without proper neutralization. Exploitation requires administrator privileges and user interaction, and its effects are limited to specific non-sensitive files or limited service interruption in SRM.

CVSS severity5.9
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Synology Safe Access before 1.3.1-0329 allows remote authenticated users to read or write limited files. Synology has not disclosed the affected code locus or how untrusted input is incorporated into generated web content without proper neutralization. Exploitation requires administrator privileges and user interaction, and its effects are limited to specific non-sensitive files or limited service interruption in SRM.

The record

CVE
CVE-2025-10466
Published
May 27, 2026
Updated
May 27, 2026
Vendor
Synology
Product
Safe Access
Classifications
CWE-79
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=* <1.3.1-0329

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Synology · Safe Accessversion=* <1.3.1-0329

Published CVSS scores

5.9Synology Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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