Improper Restriction of XML External Entity Reference in dompdf/dompdf

Description

References

• nvd.nist.gov/vuln/detail/CVE-2021-3902 · ADVISORY
• dompdf/dompdf commit f56bc8e · WEB
• dompdf/dompdf · PACKAGE
• huntr.com/bounties/a6071c07-806f-429a-8656-a4742e4191b1 · WEB

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