PHPMailer Known Exploited Vulnerabilities

Evidence-backed KEV intelligence for PHPMailer products — CISA KEV status, confidence, sensor telemetry, and virtual-patch availability.

Total KEVs

1

In CISA KEV

1

Beyond CISA KEV

0

Sensor Observed

0

Virtual Patch Available

0

PHPMailer KEVs Added by Year

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1 PHPMailer KEV added all time (primary attestation date).

Attested CVEs

CVE Confidence CISA KEV Added
CVE-2016-10033

The mailSend function in the isMail transport in PHPMailer before 5.2.18 might allow remote attackers to pass extra parameters to the mail command...

Confirmed In CISA 01 Jun 2026

Common Vulnerability Classes (CWE)

  • CWE-88 — Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') 1

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