How severe is CVE-2017-15892?

CVE-2017-15892 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-15892 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-15892?

CVE-2017-15892 affects Synology Chat. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-15892?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-15892 published?

CVE-2017-15892 was published on 2017-12-28 and last updated on 2026-06-17.

CVE-2017-15892

CVE-2017-15892 is a medium-severity vulnerability in Synology Chat with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Synology Chat
Published: 2017-12-28
Last modified: 2026-06-17

Description

Multiple cross-site scripting (XSS) vulnerabilities in Slash Command Creator in Synology Chat before 2.0.0-1124 allow remote authenticated users to inject arbitrary web script or HTML via (1) COMMAND, (2) COMMANDS INSTRUCTION, or (3) DESCRIPTION parameter.

Frequently asked questions

What is CVE-2017-15892?: Multiple cross-site scripting (XSS) vulnerabilities in Slash Command Creator in Synology Chat before 2.0.0-1124 allow remote authenticated users to inject arbitrary web script or HTML via (1) COMMAND, (2) COMMANDS INSTRUCTION, or (3) DESCRIPTION parameter.
How severe is CVE-2017-15892?: CVE-2017-15892 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-15892 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-15892?: CVE-2017-15892 affects Synology Chat. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-15892?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-15892 published?: CVE-2017-15892 was published on 2017-12-28 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:synology:chat:*:*:*:*:*:*:*:*

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