Medium severityNVD Advisory· Published Dec 15, 2025· Updated Apr 15, 2026

CVE-2023-53878

Description

Member Login Script 3.3 contains a client-side desynchronization vulnerability that allows attackers to manipulate HTTP request handling by exploiting Content-Length header parsing. Attackers can send crafted POST requests with smuggled secondary requests to potentially bypass server-side request processing controls.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Phpjabbers/Member Login Scriptllm-create

Patches

Vulnerability mechanics

References

www.exploit-db.com/exploits/51710nvd
www.phpjabbers.com/member-login-script/nvd
www.vulncheck.com/advisories/member-login-script-client-side-request-desynchronization-vulnerabilitynvd

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