Stored cross-site scripting vulnerability in QES
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
If exploited, this stored cross-site scripting vulnerability could allow remote attackers to inject malicious code in File Station. QNAP has already fixed these issues in QES 2.1.1 Build 20201006 and later.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| QNAP | QES | before 2.1.1 | 2.1.1 | Patch available | CNA |
- QES VendorQNAP Affected before 2.1.1 Fixed in 2.1.1 Patch available CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:qnap:qes:*:*:*:*:*:*:*:* | before 2.1.1 | Vulnerable | QNAP |
| cpe:2.3:a:qnap:qes:2.1.1:-:*:*:*:*:*:* | 2.1.1 | Vulnerable | QNAP |
| cpe:2.3:a:qnap:qes:2.1.1:build_20200211:*:*:*:*:*:* | 2.1.1 build_20200211 | Vulnerable | QNAP |
| cpe:2.3:a:qnap:qes:2.1.1:build_20200303:*:*:*:*:*:* | 2.1.1 build_20200303 | Vulnerable | QNAP |
| cpe:2.3:a:qnap:qes:2.1.1:build_20200319:*:*:*:*:*:* | 2.1.1 build_20200319 | Vulnerable | QNAP |
| cpe:2.3:a:qnap:qes:2.1.1:build_20200424:*:*:*:*:*:* | 2.1.1 build_20200424 | Vulnerable | QNAP |
| cpe:2.3:a:qnap:qes:2.1.1:build_20200515:*:*:*:*:*:* | 2.1.1 build_20200515 | Vulnerable | QNAP |
| cpe:2.3:a:qnap:qes:2.1.1:build_20200811:*:*:*:*:*:* | 2.1.1 build_20200811 | Vulnerable | QNAP |
- cpe:2.3:a:qnap:qes:*:*:*:*:*:*:*:* Versions before 2.1.1 Vulnerable ·QNAP
- cpe:2.3:a:qnap:qes:2.1.1:-:*:*:*:*:*:* Versions 2.1.1 Vulnerable ·QNAP
- cpe:2.3:a:qnap:qes:2.1.1:build_20200211:*:*:*:*:*:* Versions 2.1.1 build_20200211 Vulnerable ·QNAP
- cpe:2.3:a:qnap:qes:2.1.1:build_20200303:*:*:*:*:*:* Versions 2.1.1 build_20200303 Vulnerable ·QNAP
- cpe:2.3:a:qnap:qes:2.1.1:build_20200319:*:*:*:*:*:* Versions 2.1.1 build_20200319 Vulnerable ·QNAP
- cpe:2.3:a:qnap:qes:2.1.1:build_20200424:*:*:*:*:*:* Versions 2.1.1 build_20200424 Vulnerable ·QNAP
- cpe:2.3:a:qnap:qes:2.1.1:build_20200515:*:*:*:*:*:* Versions 2.1.1 build_20200515 Vulnerable ·QNAP
- cpe:2.3:a:qnap:qes:2.1.1:build_20200811:*:*:*:*:*:* Versions 2.1.1 build_20200811 Vulnerable ·QNAP
Remediation
- Fix · CNA QES (QNAP Systems Inc.) Fixed in 2.1.1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
QNAP Systems QES 2.1.1
4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2020-02216 Absolute path traversal vulnerability in QESPriority LOW 35
- TI-2020-02211 Hard-coded Password Vulnerability in QESPriority LOW 34
- TI-2020-02217 Sensitive information via generation of error messages vulnerability in QESPriority LOW 12
Timeline
- 2026-10-02 Threatist record created from CVE-2020-2503
- 2026-10-03 Alias added: GHSA-v96c-c8j8-qhm7
References
More QNAP Qes vulnerabilities
- TI-2020-02216 Absolute path traversal vulnerability in QES CVSS 3.1HIGH 7.5
- TI-2020-02211 Hard-coded Password Vulnerability in QES CVSS 3.1HIGH 7.2
- TI-2020-02217 Sensitive information via generation of error messages vulnerability in QES CVSS 3.1LOW 2.3
Sources
- CVE-2020-2503 · CVE Program
- CVE-2020-2503 · NVD
- FIRST EPSS
- GHSA-v96c-c8j8-qhm7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences