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CVE-2005-3883: CRLF injection vulnerability in the mb_send_mail function in PHP before 5.1.0 might allow remote attackers...

CRLF injection vulnerability in the mb_send_mail function in PHP before 5.1.0 might allow remote attackers to inject arbitrary e-mail headers via line feeds (LF) in the "To" address argument.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This is an old PHP email-sending flaw. If an application on PHP before 5.1.0 lets users influence the recipient address, line breaks could allow extra email headers to be injected. Business risk is mainly email abuse, spoofing, or altered message handling in legacy systems. Exposure is likely limited to legacy PHP deployments before 5.1.0, or vendor packages carrying that vulnerable mb_send_mail behavior. Applications are most exposed when user-controlled data reaches the To argument of mb_send_mail. Prioritize remediation if any legacy PHP mail workflows remain in production. For modern supported PHP environments, urgency is low, but unsupported runtimes should be treated as a broader operational risk. Mitigation focus: Upgrade PHP to 5.1.0 or a vendor package containing the fix.; Check Red Hat, Ubuntu, Turbolinux, or relevant vendor advisories for backported fixes.; Audit application code using mb_send_mail with user-controlled recipient fields..

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Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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