How severe is CVE-2019-11828?

CVE-2019-11828 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2019-11828 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-11828?

CVE-2019-11828 affects Synology Office. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-11828?

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

When was CVE-2019-11828 published?

CVE-2019-11828 was published on 2019-06-30 and last updated on 2026-06-17.

CVE-2019-11828

CVE-2019-11828 is a medium-severity vulnerability in Synology Office with a CVSS 3.x base score of 5.5. 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 5.5)
CVSS v2: 3.5
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Synology Office
Published: 2019-06-30
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in Chart in Synology Office before 3.1.4-2771 allows remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2019-11828?: Cross-site scripting (XSS) vulnerability in Chart in Synology Office before 3.1.4-2771 allows remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.
How severe is CVE-2019-11828?: CVE-2019-11828 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2019-11828 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-11828?: CVE-2019-11828 affects Synology Office. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-11828?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-11828 published?: CVE-2019-11828 was published on 2019-06-30 and last updated on 2026-06-17.

References

https://www.synology.com/security/advisory/Synology_SA_19_11

Affected products (1)

cpe:2.3:a:synology:office:*:*:*:*:*:*:*:*

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