Is the woman who appeared with her head uncovered in a video clip shown by her husband's brother to his young brothers without her knowledge sinful?

The preponderant view is that it is impermissible to photograph this type of party due to the transgressions and legal prohibitions it involves. However, if you did not do so intentionally, or if you did not appear in the picture purposefully, then there is no sin upon you, Allah willing. Nevertheless, you should hasten to repent, frequently seek forgiveness, and perform good deeds. The tape must be safeguarded so that non-mahrams do not see it, and it is better to destroy it if there is a possibility that non-mahrams could view it.