How severe is CVE-2019-18347?

CVE-2019-18347 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-2019-18347 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-18347?

CVE-2019-18347 affects Davical. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-18347?

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

When was CVE-2019-18347 published?

CVE-2019-18347 was published on 2019-12-04 and last updated on 2026-06-17.

CVE-2019-18347

CVE-2019-18347 is a medium-severity vulnerability in Davical 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% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Davical
Published: 2019-12-04
Last modified: 2026-06-17

Description

A stored XSS issue was discovered in DAViCal through 1.1.8. It does not adequately sanitize output of various fields that can be set by unprivileged users, making it possible for JavaScript stored in those fields to be executed by another (possibly privileged) user. Affected database fields include Username, Display Name, and Email.

Frequently asked questions

What is CVE-2019-18347?: A stored XSS issue was discovered in DAViCal through 1.1.8. It does not adequately sanitize output of various fields that can be set by unprivileged users, making it possible for JavaScript stored in those fields to be executed by another (possibly privileged) user. Affected database fields include Username, Display Name, and Email.
How severe is CVE-2019-18347?: CVE-2019-18347 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-2019-18347 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-18347?: CVE-2019-18347 affects Davical. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-18347?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-18347 published?: CVE-2019-18347 was published on 2019-12-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:davical:davical:*:*:*:*:*:*:*:*

More vulnerabilities in Davical

CVE-2019-18345 — Critical (CVSS 9.3): A reflected XSS issue was discovered in DAViCal through 1.1.8. It echoes the action parameter without encoding. If a…
CVE-2019-18346 — High (CVSS 8.8): A CSRF issue was discovered in DAViCal through 1.1.8. If an authenticated user visits an attacker-controlled webpage,…

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