CVE-2021-44203: Stored cross-site scripting (XSS) was possible in protection plan details

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-11-29 · updated 2026-06-17
Weakness: CWE-79

Description

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

Affected products

Acronis Cyber Protect 15: before 15; 15, 15-update1, 15-update2 — fixed in 15

How to fix

Upgrade to a fixed version: Acronis Cyber Protect 15 15. Check the vendor advisory for mitigations.

References

https://security-advisory.acronis.com/advisories/SEC-3294
https://security-advisory.acronis.com/advisories/SEC-3294

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