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TI-2026-11534 Aliases CVE-2026-13623GHSA-ch48-w544-84qr

Cross-site scripting in Synology DiskStation Manager

Priority LOW 22CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

An improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in Theme API in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allows remote authenticated users with administrator privileges to read or write limited files.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00289 21st percentileScored 2026-11-07
Fix Fixed DiskStation Manager (DSM) (Synology): 7.4-90075, 7.3.2-86009-4, 7.2.2-72806-9 +1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SynologyDiskStation Manager (DSM)7.4 to before 7.4-90075; 7.3.2 to before 7.3.2-86009-4; 7.2.2 to before 7.2.2-72806-9; 7.2.1 to before 7.2.1-69057-127.4-90075, 7.3.2-86009-4, 7.2.2-72806-9, 7.2.1-69057-12Patch availableCNA
  • DiskStation Manager (DSM) VendorSynology Affected 7.4 to before 7.4-90075; 7.3.2 to before 7.3.2-86009-4; 7.2.2 to before 7.2.2-72806-9; 7.2.1 to before 7.2.1-69057-12 Fixed in 7.4-90075, 7.3.2-86009-4, 7.2.2-72806-9, 7.2.1-69057-12 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:o:synology:diskstation_manager:*:*:*:*:*:*:*:*——Synology
  • cpe:2.3:o:synology:diskstation_manager:*:*:*:*:*:*:*:* Versions — — ·Synology

Remediation

  • Fix · CNA DiskStation Manager (DSM) (Synology) Fixed in 7.4-90075, 7.3.2-86009-4, 7.2.2-72806-9, 7.2.1-69057-12

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Synology DiskStation Manager (DSM) 7.2.1, 7.2.1-69057-12 and 3 more versions

    8 records Highest priority Priority MEDIUM 3 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2026-11541 Improper output encoding in Synology DiskStation ManagerPriority MEDIUM 50
    • TI-2026-11536 An insufficient entropy vulnerability in login logic in Synology DiskStation Manager…Priority MEDIUM 50
    • TI-2026-11538 Incorrect permission assignment in Synology DiskStation ManagerPriority MEDIUM 41
    Show all 8 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-13623
  2. 2026-10-03 Alias added: GHSA-ch48-w544-84qr

References

Other 1

  • TI-2020-01431 Netlogon Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2021-02242 Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer… KEVCVSS 3.1HIGH 7.8
  • TI-2018-01076 Out-of-bounds write in Netatalk CVSS 3.1CRITICAL 9.8
  • TI-2017-10594 Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a… CVSS 3.1CRITICAL 9.8
  • TI-2013-05716 webman/imageSelector.cgi in Synology DiskStation Manager (DSM) 4.0 before 4.0-2259, 4.2… CVSS 2.0HIGH 10.0
  • TI-2021-19843 Out-of-bounds read in Samba CVSS 3.1HIGH 8.8
See all 374 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences