Medium severity · published Jul 7, 2025
CVE-2025-53543
Kestra allows Stored XSS before 0.22
4.2
CVSS
0.2%
EPSS
No
On KEV
Description
Kestra is an event-driven orchestration platform. The error message in execution "Overview" tab is vulnerable to stored XSS due to improper handling of HTTP response received. This vulnerability is fixed in 0.22.0.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
kestra · kestra-io
< 0.22.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-53543
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-53543
github.com
https://github.com/kestra-io/kestra/security/advisories/GHSA-qpj4-4r6r-wvf4
More from kestra
10.0
CVE-2026-49869
Kestra: Unauthenticated Remote Code Execution via Authentication Bypass in `AuthenticationFilter`
10.0
CVE-2026-53576
Kestra: Unauthenticated RCE via /configs path-suffix auth-filter bypass
9.0
CVE-2026-34612
Kestra: Remote Code Execution via SQL Injection
8.7
CVE-2026-55839
Kestra: Stored XSS via custom Markdown [[link]] attribute injection
8.7
CVE-2026-55069
Kestra BasicAuth Password Stored as SHA-512 Enables Offline Brute-Force Attack