Anthony Ferrara wrote:

> I wanted to float an idea by you for PHP 7 (or 7.1 depending on the
> RM's feedback).
> 
> Currently, PHP by default is vulnerable to XXE attacks:
> https://www.owasp.org/index.php/XML_External_Entity_(XXE)_Processing
> 
> To bypass this, you need to turn off external entity loading:
> 
> libxml_disable_entity_loader(true);
> 
> What I'm proposing is to disable entity loading by default. That way
> it requires developers to opt-in to actually load external entities.
> 
> Thoughts?

A problem is reported as bug #62577.  As it is now, when
libxml_disable_entity_loader(true) has been called, no XML file can be
loaded, i.e. simplexml_load_file(), DOMDocument::load() etc. always
fails, even if the XML doesn't contain any entities at all.

-- 
Christoph M. Becker


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