Stored XSS via HTML-suffixed CSAF uploads
Published Dec 13, 2022 · Updated Apr 22, 2025
Stored cross-site scripting in csaf_provider before 0.8.2 allows remote authenticated users to execute JavaScript via crafted uploads. The upload handler accepts a valid CSAF JSON document with a text/html content type and an .html filename, then serves it for browser interpretation instead of enforcing a conforming .json name. An authenticated uploader must plant the advisory and another user must open it, which runs embedded script in the provider origin and permits browser-context data access or actions.
Summary
What happened
Stored cross-site scripting in csaf_provider before 0.8.2 allows remote authenticated users to execute JavaScript via crafted uploads. The upload handler accepts a valid CSAF JSON document with a text/html content type and an .html filename, then serves it for browser interpretation instead of enforcing a conforming .json name. An authenticated uploader must plant the advisory and another user must open it, which runs embedded script in the provider origin and permits browser-context data access or actions.
The record
- CVE
- CVE-2022-43996
- Published
- Dec 13, 2022
- Updated
- Apr 22, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 13, 2022CVE publishedPublication date reported by the CVE source.
- Apr 22, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
No public exploit references are available in this record.
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