Cross-site scripting in Veeam One
Priority MEDIUM 43CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
A vulnerability in Veeam ONE allows an unprivileged user who has access to the Veeam ONE Web Client the ability to acquire the NTLM hash of the account used by the Veeam ONE Reporting Service. Note: The criticality of this vulnerability is reduced as it requires interaction by a user with the Veeam ONE Administrator role.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.19129 97th 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 |
|---|---|---|---|---|---|
| Veeam | One | 11 – 11; 11a – 11a; 12 – 12 | — | No fix listed | CNA |
- One VendorVeeam Affected 11 – 11; 11a – 11a; 12 – 12 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:veeam:one:11.0.0.1379:*:*:*:*:*:*:* | 11.0.0.1379 | Vulnerable | Veeam |
| cpe:2.3:a:veeam:one:11.0.1.1880:*:*:*:*:*:*:* | 11.0.1.1880 | Vulnerable | Veeam |
| cpe:2.3:a:veeam:one:12.0.0.2498:*:*:*:*:*:*:* | 12.0.0.2498 | Vulnerable | Veeam |
| cpe:2.3:a:veeam:one:12.0.1.2591:*:*:*:*:*:*:* | 12.0.1.2591 | Vulnerable | Veeam |
- cpe:2.3:a:veeam:one:11.0.0.1379:*:*:*:*:*:*:* Versions 11.0.0.1379 Vulnerable ·Veeam
- cpe:2.3:a:veeam:one:11.0.1.1880:*:*:*:*:*:*:* Versions 11.0.1.1880 Vulnerable ·Veeam
- cpe:2.3:a:veeam:one:12.0.0.2498:*:*:*:*:*:*:* Versions 12.0.0.2498 Vulnerable ·Veeam
- cpe:2.3:a:veeam:one:12.0.1.2591:*:*:*:*:*:*:* Versions 12.0.1.2591 Vulnerable ·Veeam
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-38549
- 2026-10-03 Alias added: GHSA-5xw6-9h38-rh99
References
Patch 1
More Veeam One vulnerabilities
- TI-2020-08796 Deserialization of untrusted data in Veeam One Agent CVSS 3.1CRITICAL 9.8
- TI-2020-08795 Deserialization of untrusted data in Veeam One Agent CVSS 3.1CRITICAL 9.8
- TI-2023-19924 Information disclosure in Veeam One CVSS 3.1CRITICAL 9.8
- TI-2024-28037 A vulnerability that allows an attacker in possession of the Veeam ONE Agent service… CVSS 3.1HIGH 8.8
- TI-2023-19925 Insufficiently protected credentials in Veeam One CVSS 3.1MEDIUM 4.3
- TI-2024-28036 Improper access control in Veeam One CVSS 3.1HIGH 8.8
Sources
- CVE-2023-38549 · CVE Program
- CVE-2023-38549 · NVD
- FIRST EPSS
- GHSA-5xw6-9h38-rh99 · 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