CVE-2019-7722: Improper Restriction of XML External Entity Reference

May 14, 2022 (updated August 15, 2022)

PMD 5.8.1 and earlier processes XML external entities in ruleset files it parses as part of the analysis process, allowing attackers tampering it (either by direct modification or MITM attacks when using remote rulesets) to perform information disclosure, denial of service, or request forgery attacks. (PMD 6.x is unaffected because of a 2017-09-15 change.)

References

github.com/advisories/GHSA-57qj-79gh-69w8
github.com/pmd/pmd/issues/1650
nvd.nist.gov/vuln/detail/CVE-2019-7722

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