SolarWinds Serv-U Authenticated Stored Cross-site Scripting (XSS) Vulnerability
Priority LOW 28CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
SolarWinds Serv-U was found to be affected by a stored cross-site scripting vulnerability that could lead to session hijacking or information disclosure from an administrator account.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00515 44th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SolarWinds | Serv-U | 15.5.4 HF1 and below | — | No fix listed | CNA |
- Serv-U VendorSolarWinds Affected 15.5.4 HF1 and below Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:* | before 2026.3 | Vulnerable | SolarWinds |
- cpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:* Versions before 2026.3 Vulnerable ·SolarWinds
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-28315
- 2026-10-03 Alias added: GHSA-27f7-w76r-h7r2
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-2026-28315 · CVE Program
- CVE-2026-28315 · NVD
- FIRST EPSS
- GHSA-27f7-w76r-h7r2 · GitHub Advisory Database · CC BY 4.0
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