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TI-2018-14141 Aliases CVE-2018-19953GHSA-8h8x-7j55-4jp9

Cross-site scripting in QNAP QTS

Priority CRITICAL 86Exploited in the wildCWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

If exploited, this cross-site scripting vulnerability could allow remote attackers to inject malicious code. QNAP has already fixed the issue in the following QTS versions. QTS 4.4.2.1231 on build 20200302; QTS 4.4.1.1201 on build 20200130; QTS 4.3.6.1218 on build 20200214; QTS 4.3.4.1190 on build 20200107; QTS 4.3.3.1161 on build 20200109; QTS 4.2.6 on build 20200109.

Why it matters now

Exploitation Active In CISA KEV since 2022-05-24CISA due date 2022-06-14Known ransomware use
EPSS 0.30527 98th percentileScored 2026-11-07
Fix Fixed QTS (QNAP Systems Inc.): 4.4.2.1231, 4.4.1.1201, 4.3.6.1218 +3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
QNAPQTSbefore 4.4.2.12314.4.2.1231Patch availableCNA
QNAPQTSbefore 4.4.1.12014.4.1.1201Patch availableCNA
QNAPQTSbefore 4.3.6.12184.3.6.1218Patch availableCNA
QNAPQTSbefore 4.3.4.11904.3.4.1190Patch availableCNA
QNAPQTSbefore 4.3.3.1161; before 4.2.64.3.3.1161, 4.2.6Patch availableCNA
  • QTS VendorQNAP Affected before 4.4.2.1231 Fixed in 4.4.2.1231 Patch available CNA
  • QTS VendorQNAP Affected before 4.4.1.1201 Fixed in 4.4.1.1201 Patch available CNA
  • QTS VendorQNAP Affected before 4.3.6.1218 Fixed in 4.3.6.1218 Patch available CNA
  • QTS VendorQNAP Affected before 4.3.4.1190 Fixed in 4.3.4.1190 Patch available CNA
  • QTS VendorQNAP Affected before 4.3.3.1161; before 4.2.6 Fixed in 4.3.3.1161, 4.2.6 Patch available CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*before 4.2.6; 4.3.1.0013 to before 4.3.3.1161; 4.3.4 to before 4.3.4.1190; 4.3.6 to before 4.3.6.1218; 4.4.0 to before 4.4.1.1201; 4.4.2 to before 4.4.2.1231VulnerableQNAP
cpe:2.3:o:qnap:qts:4.2.6:-:*:*:*:*:*:*4.2.6VulnerableQNAP
cpe:2.3:o:qnap:qts:4.2.6:build_20170517:*:*:*:*:*:*4.2.6 build_20170517VulnerableQNAP
cpe:2.3:o:qnap:qts:4.2.6:build_20190322:*:*:*:*:*:*4.2.6 build_20190322VulnerableQNAP
cpe:2.3:o:qnap:qts:4.2.6:build_20190730:*:*:*:*:*:*4.2.6 build_20190730VulnerableQNAP
cpe:2.3:o:qnap:qts:4.2.6:build_20190921:*:*:*:*:*:*4.2.6 build_20190921VulnerableQNAP
cpe:2.3:o:qnap:qts:4.2.6:build_20191107:*:*:*:*:*:*4.2.6 build_20191107VulnerableQNAP
  • cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:* Versions before 4.2.6; 4.3.1.0013 to before 4.3.3.1161; 4.3.4 to before 4.3.4.1190; 4.3.6 to before 4.3.6.1218; 4.4.0 to before 4.4.1.1201; 4.4.2 to before 4.4.2.1231 Vulnerable ·QNAP
  • cpe:2.3:o:qnap:qts:4.2.6:-:*:*:*:*:*:* Versions 4.2.6 Vulnerable ·QNAP
  • cpe:2.3:o:qnap:qts:4.2.6:build_20170517:*:*:*:*:*:* Versions 4.2.6 build_20170517 Vulnerable ·QNAP
  • cpe:2.3:o:qnap:qts:4.2.6:build_20190322:*:*:*:*:*:* Versions 4.2.6 build_20190322 Vulnerable ·QNAP
  • cpe:2.3:o:qnap:qts:4.2.6:build_20190730:*:*:*:*:*:* Versions 4.2.6 build_20190730 Vulnerable ·QNAP
  • cpe:2.3:o:qnap:qts:4.2.6:build_20190921:*:*:*:*:*:* Versions 4.2.6 build_20190921 Vulnerable ·QNAP
  • cpe:2.3:o:qnap:qts:4.2.6:build_20191107:*:*:*:*:*:* Versions 4.2.6 build_20191107 Vulnerable ·QNAP

Remediation

  • Fix · CNA QTS (QNAP Systems Inc.) Fixed in 4.4.2.1231
  • Fix · CNA QTS (QNAP Systems Inc.) Fixed in 4.4.1.1201
  • Fix · CNA QTS (QNAP Systems Inc.) Fixed in 4.3.6.1218
  • Fix · CNA QTS (QNAP Systems Inc.) Fixed in 4.3.4.1190
  • Fix · CNA QTS (QNAP Systems Inc.) Fixed in 4.3.3.1161, 4.2.6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    QNAP Systems QTS 4.2.6, 4.3.3.1161 and 4 more versions

    2 records Highest priority Priority CRITICAL 2 CRITICAL

    Other records, highest priority first

    • TI-2018-14137 Improper input validation in QNAP QTSPriority CRITICAL 100
    Show all 2 records →

Timeline

  1. 2022-05-24 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2018-19953
  3. 2026-10-03 Alias added: GHSA-8h8x-7j55-4jp9

References

Advisory 1

  • TI-2020-02221 Command Injection Vulnerability in QTS and QuTS hero KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05101 Improper input validation in QNAP NAS devices KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-14137 Improper input validation in QNAP QTS KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-14131 Cross-site scripting in QNAP QTS KEVCVSS 3.1HIGH 8.0
See all 282 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences