VulnSocial

CVE-2026-16267Disclosure

LOWCVSS 8.1 · HIGH

Signal is active with 1 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 4.16 does not restrict the classes allowed when unserialising a value taken from a public form submission, allowing unauthenticated attackers to inject arbitrary PHP objects.

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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

  • 1 mentions across 1 observed day

What's happening

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

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-08: 1Technical Details · 2026-08-08: 108-08
Signal classification1 categories
Disclosure
1100.0%
Full discourse1 post
  • CyberSignal | Cybersecurity News@XQOPTRX
    Disclosure

    🚨 WordPress Newsletters plugin hit by object injection flaw CVE-2026-16267 affects Newsletters versions before 4.16. Unauthenticated attackers can inject arbitrary PHP objects because data received through a public form is unserialized without restricting allowed classes. 🔎 Source: WPScan / CVE. #WordPress #PHP #CVE #WebSecurity #CyberSecurity

    Post summary

    The post announces CVE-2026-16267, an object injection flaw in WordPress Newsletters before 4.16 that allows unauthenticated PHP object injection via a public form.

    0000042
    34 followersView on X

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