CVE-2026-13623

4.8 mediumEPSS 0.3%

Medium (4.8). EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.8 medium

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-09-18
Modified: 2026-09-18
Record from: the NVD, synced 2026-10-19

References

https://www.synology.com/en-global/security/advisory/Synology_SA_26_13

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