onyx

onyx --cves cve-2013-4389

CVE-2013-4389

score
<0.1
cvss
4.3
epss
3.1%
published
2013-10-17
kev added
—
first seen

Ruby on Rails 3.x before 3.2.15 contains multiple format string vulnerabilities in log_subscriber.rb within Action Mailer, causing denial of service via crafted email addresses during log message construction, exploit requires remote attacker to send malicious email.

Timeline

How this CVE moved toward exploitation. Chart: last 30 days — trend score, EPSS, community mentions per day; hover the event lane.

events2013-10-17 — PublishedP2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 3.1%2026-09-23: epss 3.1%2026-09-24: epss 3.1%2026-09-25: epss 3.1%2026-09-26: epss 3.1%2026-09-27: epss 3.1%2026-09-28: epss 3.1%2026-09-29: epss 3.1%2026-09-30: epss 3.1%2026-10-01: epss 3.1%2026-10-02: epss 3.1%2026-10-03: epss 3.1%2026-10-04: epss 3.1%2026-10-05: epss 3.1%2026-10-06: epss 3.1%2026-10-07: epss 3.1%2026-10-08: epss 3.1%2026-10-09: epss 3.1%2026-10-10: epss 3.1%2026-10-11: epss 3.1%2026-10-12: epss 3.1%2026-10-13: epss 3.1%2026-10-14: epss 3.1%2026-10-15: epss 3.1%2026-10-16: epss 3.1%2026-10-18: epss 3.1%2026-10-19: epss 3.1%2026-10-20: epss 3.1%2026-10-21: epss 3.1%3.1%mentions/day0no mentions in 30 days2026-09-22today
  1. Published
  2. Tracked by Onyx
  3. Public PoC

Exploit availability

Public PoC flagged by vulnx; no direct exploit link among the citations.

Weaknesses

CWE-134

References 5