HTML injection Vulnerability in Serv-U 15.4
Priority LOW 24CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
A vulnerability has been identified within Serv-U 15.4 that allows an authenticated actor to insert content on the file share function feature of Serv-U, which could be used maliciously.
Why it matters now
EPSS 0.00833 57th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| SolarWinds | Serv-U | 15.4 and previous versions | — | No fix listed | CNA |
- Serv-U VendorSolarWinds Affected 15.4 and previous versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:solarwinds:serv-u:15.4.0:-:*:*:*:*:*:* | 15.4.0 | Vulnerable | SolarWinds |
| cpe:2.3:a:solarwinds:serv-u:15.4.0:hotfix1:*:*:*:*:*:* | 15.4.0 hotfix1 | Vulnerable | SolarWinds |
| cpe:2.3:a:solarwinds:serv-u:15.4.0:hotfix2:*:*:*:*:*:* | 15.4.0 hotfix2 | Vulnerable | SolarWinds |
- cpe:2.3:a:solarwinds:serv-u:15.4.0:-:*:*:*:*:*:* Versions 15.4.0 Vulnerable ·SolarWinds
- cpe:2.3:a:solarwinds:serv-u:15.4.0:hotfix1:*:*:*:*:*:* Versions 15.4.0 hotfix1 Vulnerable ·SolarWinds
- cpe:2.3:a:solarwinds:serv-u:15.4.0:hotfix2:*:*:*:*:*:* Versions 15.4.0 hotfix2 Vulnerable ·SolarWinds
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-40053
- 2026-10-03 Alias added: GHSA-7m83-852c-hhv7
References
More SolarWinds Serv-u vulnerabilities
- TI-2021-14105 Serv-U Remote Memory Escape Vulnerability KEVCVSS 3.1CRITICAL 10.0
- TI-2024-19183 SolarWinds Serv-U L Directory Transversal Vulnerability KEVCVSS 3.1HIGH 8.6
- TI-2026-22619 SolarWinds Serv-U Unauthenticated Denial of Service Vulnerability KEVCVSS 3.1HIGH 7.5
- TI-2021-14139 Improper Input Validation Vulnerability in Serv-U KEVCVSS 3.1MEDIUM 5.3
- TI-2024-30693 SolarWinds Serv-U FTP Service Directory Traversal Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
- TI-2021-14142 Directory Transversal Vulnerability in Serv-U 15.3 CVSS 3.1HIGH 7.5
Sources
- CVE-2023-40053 · CVE Program
- CVE-2023-40053 · NVD
- FIRST EPSS
- GHSA-7m83-852c-hhv7 · GitHub Advisory Database · CC BY 4.0
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