How severe is CVE-2022-22682?

CVE-2022-22682 has a CVSS 3.x base score of 6.5, 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 low.

Is CVE-2022-22682 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-22682?

CVE-2022-22682 affects Synology Calendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-22682?

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

When was CVE-2022-22682 published?

CVE-2022-22682 was published on 2022-07-12 and last updated on 2026-06-17.

CVE-2022-22682

CVE-2022-22682 is a medium-severity vulnerability in Synology Calendar with a CVSS 3.x base score of 6.5. 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 6.5)
CVSS v2: 3.5
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Synology Calendar
Published: 2022-07-12
Last modified: 2026-06-17

Description

Improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in Event Management in Synology Calendar before 2.4.5-10930 allows remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2022-22682?: Improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in Event Management in Synology Calendar before 2.4.5-10930 allows remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.
How severe is CVE-2022-22682?: CVE-2022-22682 has a CVSS 3.x base score of 6.5, 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 low.
Is CVE-2022-22682 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-22682?: CVE-2022-22682 affects Synology Calendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-22682?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-22682 published?: CVE-2022-22682 was published on 2022-07-12 and last updated on 2026-06-17.

References

https://www.synology.com/security/advisory/Synology_SA_22_07

Affected products (1)

cpe:2.3:a:synology:calendar:*:*:*:*:*:*:*:*

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CVE-2018-8915 — Medium (CVSS 6.5): Cross-site scripting (XSS) vulnerability in Notification Center in Synology Calendar before 2.1.1-0502 allows remote…
CVE-2017-15891 — Medium (CVSS 6.5): Improper access control vulnerability in SYNO.Cal.EventBase in Synology Calendar before 2.0.1-0242 allows remote…
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