The confirmed weakness is improper neutralization of input during web page generation, classified as CWE-79. In the OTDS Swagger UI, attacker-controlled data may be interpreted as HTML instead of being rendered only as ordinary data, consistent with the CNA's HTML injection title. The public record does not identify the exact request field, parameter, endpoint, or rendering path, so those implementation details remain unknown. The supplied vector indicates that the attack can be reached over the network, requires no privileges, and has low complexity; user interaction is recorded as passive, meaning a victim browser or viewing context is involved. The available evidence does not confirm server-side code execution or a specific payload.