SimpleXML (latest version 2.7.1) is vulnerable to an XXE vulnerability resulting SSRF, information disclosure, DoS and so on.
References
- https://nvd.nist.gov/vuln/detail/CVE-2017-1000190
- https://github.com/ngallagher/simplexml/issues/18
- https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451@%3Csolr-user.lucene.apache.org%3E
- https://lists.apache.org/thread.html/8c4ef27e2c0218f29e785990dc919266855aea137c958f10d242cb36@%3Cdev.lucene.apache.org%3E
- https://lists.apache.org/thread.html/r204ba2a9ea750f38d789d2bb429cc0925ad6133deea7cbc3001d96b5@%3Csolr-user.lucene.apache.org%3E
- https://github.com/advisories/GHSA-f5qf-vh69-9q4r