CVE-2018-8921
CVE-2018-8921 is a medium-severity vulnerability in Synology Drive Server 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 Drive Server
- Published:
- Last modified:
Description
Cross-site scripting (XSS) vulnerability in File Sharing Notify Toast in Synology Drive before 1.0.2-10275 allows remote authenticated users to inject arbitrary web script or HTML via the malicious file name.
Frequently asked questions
- What is CVE-2018-8921?
- Cross-site scripting (XSS) vulnerability in File Sharing Notify Toast in Synology Drive before 1.0.2-10275 allows remote authenticated users to inject arbitrary web script or HTML via the malicious file name.
- How severe is CVE-2018-8921?
- CVE-2018-8921 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-2018-8921 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-2018-8921?
- CVE-2018-8921 affects Synology Drive Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-8921?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2018-8921 published?
- CVE-2018-8921 was published on 2018-06-01 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:synology:drive_server:*:*:*:*:*:*:*:*
More vulnerabilities in Synology Drive Server
- CVE-2024-50631 — High (CVSS 7.5): Improper neutralization of special elements used in an SQL command ('SQL Injection') vulnerability in the system…
- CVE-2024-50630 — High (CVSS 7.5): Missing authentication for critical function vulnerability in the webapi component in Synology Drive Server before…
- CVE-2018-8922 — Medium (CVSS 6.5): Improper access control vulnerability in Synology Drive before 1.0.2-10275 allows remote authenticated users to access…
- CVE-2018-8910 — Medium (CVSS 6.5): Cross-site scripting (XSS) vulnerability in Attachment Preview in Synology Drive before 1.0.1-10253 allows remote…
- CVE-2018-13297 — Medium (CVSS 5.3): Information exposure vulnerability in SYNO.SynologyDrive.Files in Synology Drive before 1.1.2-10562 allows remote…
All CVEs affecting Synology Drive Server →
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 →