EU-OPS reference
To my knowledge there are no X-wind limitations guideline/reccomedations that I am aware of in EU-OPS (to try and confirm this I just did a word search for 'wind' over the whole document in .pdf).
It is specific to your aircraft and to a degree your operating procedures.
We issue Airbus 'recommendations' in our performance folders but these are not based on actual landing/take-off data (Airbus do not have the data I understand) but on the results of simulations modelled to account for reduced runway friction. We treat these as limitations.
In addition we issue company recommended guidelines for max x-wind for ops on contaminated runways, based on our actual experience of such operations. This are lower than the Airbus 'recommendations'.!
I hope that helps, but I guess it doesn't!