CVE-2021-23792: Improper Restriction of XML External Entity Reference

May 6, 2022 (updated May 17, 2022)

The package com.twelvemonkeys.imageio:imageio-metadata before 3.7.1 is vulnerable to XML External Entity (XXE) Injection due to an insecurely initialized XML parser for reading XMP Metadata. An attacker can exploit this vulnerability if they are able to supply a file (e.g. when an online profile picture is processed) with a malicious XMP segment. If the XMP metadata of the uploaded image is parsed, then the XXE vulnerability is triggered.

References

github.com/haraldk/TwelveMonkeys/commit/da4efe98bf09e1cce91b7633cb251958a200fc80
nvd.nist.gov/vuln/detail/CVE-2021-23792
snyk.io/vuln/SNYK-JAVA-COMTWELVEMONKEYSIMAGEIO-2316763

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