Improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in Event Management in Synology Calendar…

published 2022-07-12 4y ago modified 2026-06-17 4mo ago also EUVD-2022-27827

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

Synology Synology Calendar 2.4.5-10930

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Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Affected products

Synology Synology Calendar

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

synology.com /security/advisory/Synology_SA_22_07
vendor-advisory

Sources

CVE List CVE-2022-22682
NVD CVE-2022-22682

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