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Vulnerabilities

Vulnerability · CVE-2026-18322

Improper Privilege Management

Published Sep 24, 2026 · catalog updated Sep 24, 2026 · Smart Popup by Supsystic

Patch now

CVE-2026-18322 is in the CISA known-exploited catalog. Confirm Smart Popup by Supsystic against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
0.59%
Remediation
Remediation guidance
Affected products
stated Smart Popup by Supsystic · vendor supsysticcom Smart Popup by Supsystic

The Smart Popup by Supsystic plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.12.0. This is due to a permission map collision in the function in , where overwrites the popup module's administrator-restricted method list with the base controller's value, silently removing from protected actions; this is compounded by the subscription confirmation email embedding the same generic that the unauthenticated endpoint accepts, and by the complete absence of any server-side role allowlist in . This makes it possible for unauthenticated attackers to sub Initial-access exploit intelligence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated Smart Popup by Supsystic<= 1.12.0
  • vendor supsysticcom Smart Popup by Supsysticversion unspecified

How to fix CVE-2026-18322

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2026-18322 is in the CISA known-exploited catalog. Confirm Smart Popup by Supsystic against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with Smart Popup by Supsystic <= 1.12.0. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 0.59%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 24, 2026 · VulnCheck KEV

    Detected

    The Smart Popup by Supsystic plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.12.0. This is due to a permission map collision in the function in , where overwrites the popup module's administrator-restricted method list with the base controller's value, silently removing from protected actions; this is compounded by the subscription confirmation em

  2. Sep 24, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2026-18322

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-18322

    30-day exploitation probability 0.6%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2026-18322

    The Smart Popup by Supsystic plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.12.0. This is due to a permission map collision in the function in , where overwrites the popup module's administrator-restricted method list with the b

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.