Directory traversal. DoS.
vulners.com/securityvulns/securityvulns:doc:7510
vulners.com/securityvulns/securityvulns:doc:7511
vulners.com/securityvulns/securityvulns:doc:7512
vulners.com/securityvulns/securityvulns:doc:7521
vulners.com/securityvulns/securityvulns:doc:7522
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