ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2026-89270

Popup Builder <= 4.4.5 - Missing Authorization to Unauthenticated Arbitrary Popup Post Trashing via 'post_type' and 'sg_popup_preview_id' Parameters

Published Oct 31, 2026 · catalog updated Oct 31, 2026 · Popup Builder – Create highly converting, mobile friendly marketing popups.

Last checked Nov 3, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-89270. EPSS is 0.39%. Act only if a listed version of Popup Builder – Create highly converting, mobile friendly marketing popups. is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Critical9.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.39%
Remediation
Version ranges on file
Affected products
stated Popup Builder – Create highly converting, mobile friendly marketing popups. · vendor popupbuilder Popup Builder – Create highly converting, mobile friendly marketing popups.

The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.5 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to trash all published popups on the site with a single unauthenticated GET request. The attack is amplified by a second flaw in SGPopup::find(), which returns false for every normally published popup when the sg_popup_preview_id parameter is present, causing the trash branch to fire against every popup on the site simultaneously.

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 Popup Builder – Create highly converting, mobile friendly marketing popups.<= 4.4.5
  • vendor popupbuilder Popup Builder – Create highly converting, mobile friendly marketing popups.version unspecified

How to fix CVE-2026-89270

What to do

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

Should you patch?

No confirmed exploitation is on record for CVE-2026-89270. EPSS is 0.39%. Act only if a listed version of Popup Builder – Create highly converting, mobile friendly marketing popups. is installed.

Which versions are affected?

Compare what you have installed with Popup Builder – Create highly converting, mobile friendly marketing popups. <= 4.4.5. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-862: Missing Authorization. EPSS 0.39%. There is no CISA KEV listing. 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.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 31, 2026 · CIRCL Vulnerability Lookup

    Detected

    The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.5 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to trash all published popups on the site with a single unauthentic

Sources

  • CIRCL Vulnerability LookupVulnerability recordCVE-2026-89270

    The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.5 This is due to the plugin not properly verifying that a user is authorized to perform an action.

    vulnerability.circl.lu
  • CVE.orgVulnerability recordCVE-2026-89270

    The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.5 This is due to the plugin not properly verifying that a user is authorized to perform an action.

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-89270

    30-day exploitation probability 0.39%

    first.org
  • Tenable CVE DatabaseVulnerability recordCVE-2026-89270

    The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.5 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to trash all published popups on the site with a single unauthentic

    tenable.com

References

Freshness

Last verified in this catalog Nov 3, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Tenable CVE DatabaseNov 1, 2026
  • FIRST EPSSOct 31, 2026
  • CVE.orgOct 31, 2026
  • CIRCL Vulnerability LookupOct 31, 2026