VulnSocial

CVE-2026-12583Disclosure

LOWCVSS 8.1 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

The Newsletters WordPress plugin before 4.15 does not prevent deserialization of untrusted input that is stored through a public form, allowing unauthenticated attackers to inject a PHP object and, via a property-oriented gadget chain bundled with the Newsletters WordPress plugin before 4.15, write arbitrary files and execute code on the server.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-502

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-07-14: 2Technical Details · 2026-07-14: 207-14
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-12583 The Newsletters WordPress plugin before 4.15 does not prevent deserialization of untrusted input that is stored through a public form, allowing unauthenticated attack… https://www.cve.org/CVERecord?id=CVE-2026-12583

    Post summary

    The CVE describes an unauthenticated deserialization flaw in Newsletters WordPress plugin versions prior to 4.15, but no proof of concept, exploit code, active exploitation, or patch information is provided.

    00010954
    57.8K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-12583 The Newsletters WordPress plugin before 4.15 does not prevent deserialization of untrusted input that is stored through a public form, allowing unauthenticated attack… https://www.cve.org/CVERecord?id=CVE-2026-12583 ----- Traducción: CVE-2026-12583 El … http://infoflow.cloud`

    Post summary

    This post announces CVE‑2026‑12583, stating that the Newsletters WordPress plugin (pre‑4.15) fails to block deserialization of untrusted input via a public form, enabling unauthenticated exploitation.

    0000025
    92 followersView on X

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