Language: Java
Label: vulnerable
CWE: CWE-79 \u2014 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Code:
    public void setImageToShow(String imageToShow) {
        synchronized (lock) {
            this.imageToShow = imageToShow;
            if (viewManager != null) {
                viewManager.setDropdownSelected(String.valueOf(imageToShow));
            }
            // Reset LOGID (the LOGID setter is called later by PrettyFaces, so if a value is passed, it will still be set)
            setLogid("");
            logger.trace("imageToShow: {}", this.imageToShow);
        }
    }