Popup Builder: Unauthenticated popup trashing and preview changes
The Popup Builder WordPress plugin before 4.4.6 does not perform authorization checks before trashing popup content in a maintenance routine that runs on unauthenticated requests, allowing unauthenticated attackers to move affected popups into the Trash and overwrite their stored preview data. Other endpoint, parameter, role or implementation details not named in this export are not established by this record. Affected versions: before 4.4.6.
- Component
- Popup Builder
- Plugin slug
popup-builder- Affected
- < 4.4.6
- Safe version
4.4.6- Published
- Oct 23, 2026
- Weakness
- CWE-862 — Missing Authorization
This CVE was published Oct 23, 2026 and is one of 23 known issues for this plugin.
Update, patch or deactivate.
The authoritative export identifies 4.4.6 as fixed. Update to the applicable fixed release or a later supported release. Enforce server-side caller, object and operation permissions at the disclosed trust boundary; do not treat knowledge of identifiers or a nonce as authorization.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Popup Builder WordPress plugin before 4.4.6 does not perform authorization checks before trashing popup content in a maintenance routine that runs on unauthenticated requests, allowing unauthenticated attackers to move affected popups into the Trash and overwrite their stored preview data.
CVE / CNA vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N