Cross-site scripting in Acronis Cyber Protect 15
Priority LOW 25CWE-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
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
Stored cross-site scripting (XSS) was possible in protection plan details. The following products are affected: Acronis Cyber Protect 15 (Windows, Linux) before build 28035
Why it matters now
EPSS 0.00466 40th percentileScored 2026-11-07
Fix Fixed Acronis Cyber Protect 15 (Acronis): 28035
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 |
|---|---|---|---|---|---|
| Acronis | Acronis Cyber Protect 15 | before 28035 | 28035 | Patch available | CNA |
| Acronis | Acronis Cyber Protect 15 | before 28035 | 28035 | Patch available | CNA |
- Acronis Cyber Protect 15 VendorAcronis Affected before 28035 Fixed in 28035 Patch available CNA
- Acronis Cyber Protect 15 VendorAcronis Affected before 28035 Fixed in 28035 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:acronis:cyber_protect:*:*:*:*:*:*:*:* | before 15 | Vulnerable | Acronis |
| cpe:2.3:a:acronis:cyber_protect:15:-:*:*:*:*:*:* | 15 | Vulnerable | Acronis |
| cpe:2.3:a:acronis:cyber_protect:15:update1:*:*:*:*:*:* | 15 update1 | Vulnerable | Acronis |
| cpe:2.3:a:acronis:cyber_protect:15:update2:*:*:*:*:*:* | 15 update2 | Vulnerable | Acronis |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:acronis:cyber_protect:*:*:*:*:*:*:*:* Versions before 15 Vulnerable ·Acronis
- cpe:2.3:a:acronis:cyber_protect:15:-:*:*:*:*:*:* Versions 15 Vulnerable ·Acronis
- cpe:2.3:a:acronis:cyber_protect:15:update1:*:*:*:*:*:* Versions 15 update1 Vulnerable ·Acronis
- cpe:2.3:a:acronis:cyber_protect:15:update2:*:*:*:*:*:* Versions 15 update2 Vulnerable ·Acronis
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
- Fix · CNA Acronis Cyber Protect 15 (Acronis) Fixed in 28035
- Fix · CNA Acronis Cyber Protect 15 (Acronis) Fixed in 28035
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Acronis Cyber Protect 15 28035
6 records Highest priority Priority LOW 6 LOW
Other records, highest priority first
- TI-2021-19892 Uncontrolled search path in Acronis Cyber Protect 15Priority LOW 34
- TI-2021-19895 Cross-site scripting in Acronis Cyber Protect 15Priority LOW 28
- TI-2021-19896 Cross-site scripting in Acronis Cyber Protect 15Priority LOW 25
Timeline
- 2026-10-02 Threatist record created from CVE-2021-44203
- 2026-10-03 Alias added: GHSA-3m7g-q8jw-q449
References
More Acronis Cyber Protect vulnerabilities
- TI-2022-03146 Improper privilege management in Acronis Cyber Protect 15 CVSS 3.1HIGH 8.8
- TI-2025-21714 Weak authentication in Acronis Cyber Protect 16 CVSS 3.0CRITICAL 10.0
- TI-2025-21713 Weak authentication in Acronis Cyber Protect 16 CVSS 3.0CRITICAL 10.0
- TI-2025-21717 Missing authorization in Acronis Cyber Protect 16 CVSS 3.0CRITICAL 10.0
- TI-2023-23738 Authorization bypass in Acronis Cyber Protect 15 CVSS 3.1CRITICAL 9.1
- TI-2026-22921 Weak authentication in Acronis Cyber Protect 17 CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-44203 · CVE Program
- CVE-2021-44203 · NVD
- FIRST EPSS
- GHSA-3m7g-q8jw-q449 · 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