CVE-2019-11825
CVE-2019-11825 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: 1% (52nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Synology Calendar
- Published:
- Last modified:
Description
Cross-site scripting (XSS) vulnerability in Event Editor in Synology Calendar before 2.3.0-0615 allows remote attackers to inject arbitrary web script or HTML via the title parameter.
Frequently asked questions
- What is CVE-2019-11825?
- Cross-site scripting (XSS) vulnerability in Event Editor in Synology Calendar before 2.3.0-0615 allows remote attackers to inject arbitrary web script or HTML via the title parameter.
- How severe is CVE-2019-11825?
- CVE-2019-11825 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-2019-11825 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-11825?
- CVE-2019-11825 affects Synology Calendar. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2019-11825?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2019-11825 published?
- CVE-2019-11825 was published on 2019-06-30 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:synology:calendar:*:*:*:*:*:*:*:*
More vulnerabilities in Synology Calendar
- CVE-2019-11829 — High (CVSS 7.3): OS command injection vulnerability in drivers_syno_import_user.php in Synology Calendar before 2.3.1-0617 allows remote…
- CVE-2022-22686 — Medium (CVSS 6.5): Cross-Site Request Forgery (CSRF) vulnerability in webapi component in Synology Calendar before 2.3.4-0631 allows…
- CVE-2022-22682 — Medium (CVSS 6.5): Improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in Event Management…
- 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…
- CVE-2021-34812 — Medium (CVSS 5.8): Use of hard-coded credentials vulnerability in php component in Synology Calendar before 2.4.0-0761 allows remote…
All CVEs affecting Synology Calendar →
Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities
- CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
- CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
- CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
- CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
- CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
- CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…
Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →