CVE-2011-4542

CVE-2011-4542 is a none vulnerability published on November 30, 2011. Hastymail2 2.1.1 before RC2 allows remote attackers to execute arbitrary commands via the (1) rs or (2) rsargs[] parameter in a mailbox Drafts action to the default URI.

CVE-2011-4542 was first published in the National Vulnerability Database on November 30, 2011, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

CVE-2011-4542 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-4542, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.