CVE-2026-21407Patch

LOW

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

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0.5/ 10 priority

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

Patch or workaround signal is available
1 mentions across 1 observed day

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 1 signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Patch

1100.0%

Referenced assets1 URL

By indicator

https://cve.org/CVERecord?id=CVE-2026-21407

Full discourse1 post

White Rabbitx 🏴‍☠️@TheRabbitPy180d
Patch
🚨 CVE-2026-21407 — WordPress Plugin "Simple Event Manager" ≤ 2.3.1 is vulnerable to unauthenticated arbitrary file upload, enabling full RCE via crafted payloads. Public-facing instances are trivial to compromise. Patch immediately. Source: https://cve.org/CVERecord?id=CVE-2026-21407
Post summary
CVE-2026-21407 permits unauthenticated file uploads in the Simple Event Manager plugin, enabling full remote code execution; administrators should apply the patch immediately.
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