OPEXUS FOIAXpress stored XSS via banner image

OPEXUS FOIAXpress before 11.13.3.0 allows an administrative user to inject JavaScript or other content within the Annual Report Enterprise Banner image upload field. Injected content is executed in the context of other users when they generate an Annual Report. Successful exploitation allows the administrative user to perform actions on behalf of the target, including stealing session cookies, user credentials, or sensitive data.