CVE-2017-15886

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-12-28 · updated 2026-06-17
Weakness: CWE-918

Description

Server-side request forgery (SSRF) vulnerability in Link Preview in Synology Chat before 2.0.0-1124 allows remote authenticated users to download arbitrary local files via a crafted URI.

Affected products

Synology Chat: before 2.0.0-1124 — fixed in 2.0.0-1124

How to fix

Upgrade to a fixed version: Synology Chat 2.0.0-1124. Check the vendor advisory for mitigations.

References

https://www.synology.com/en-global/support/security/Synology_SA_17_78
https://www.synology.com/en-global/support/security/Synology_SA_17_78

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