Evasys · Evasys · CVE-2023-31434
**Name of the Vulnerable Software and Affected Versions**
evasys versions prior to 8.2 Build 2286
evasys versions 9.x prior to 9.0 Build 2401
**Description**
The issue concerns the lack of input validation for certain parameters in evasys, specifically `nutzer titel`, `nutzer vn`, `nutzer nn`, `langID`, and `ONLINEID`. This allows authenticated attackers to inject HTML code and XSS payloads in multiple locations.
**Recommendations**
For evasys versions prior to 8.2 Build 2286, update to version 8.2 Build 2286 or later.
For evasys versions 9.x prior to 9.0 Build 2401, update to version 9.0 Build 2401 or later.
As a temporary workaround, consider restricting access to the user profile and direct links to minimize the risk of exploitation.
Avoid using the parameters `nutzer titel`, `nutzer vn`, `nutzer nn`, `langID`, and `ONLINEID` in the affected locations until the issue is resolved.