Session script execution via unencoded docs version
Published Jul 21, 2025 · Updated Jul 23, 2025
Reflected XSS in Cadwyn before 5.4.3 allows remote attackers to execute JavaScript in a user's session through a crafted docs link. The swagger_dashboard and redoc_dashboard handlers insert the unencoded version query value into an openapi_url string inside generated script content. Exploitation requires a user to open a crafted /docs or /redoc link, allowing attacker-supplied script to run in that user's application session.
Summary
What happened
Reflected XSS in Cadwyn before 5.4.3 allows remote attackers to execute JavaScript in a user's session through a crafted docs link. The swagger_dashboard and redoc_dashboard handlers insert the unencoded version query value into an openapi_url string inside generated script content. Exploitation requires a user to open a crafted /docs or /redoc link, allowing attacker-supplied script to run in that user's application session.
The record
- CVE
- CVE-2025-53528
- Published
- Jul 21, 2025
- Updated
- Jul 23, 2025
- Vendor
- Stanislav Zmiev
- Product
- Cadwyn
- Classifications
- CWE-79, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 21, 2025CVE publishedPublication date reported by the CVE source.
- Jul 23, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 5.4.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Cadwyn docs version reflected-XSS proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo