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Δ / VULNERABILITY RECORD

CVE-2025-9856.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSMEDIUM / 6.4CVSS 3.1 · security@wordfence.com
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSDeferredModified Oct 07, 2026

Disclosure summary

The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'sg_popup' shortcode in all versions up to, and including, 4.4.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Source-reported weakness categories

CWE-79

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

NIST National Vulnerability Database · NVD-CVE-2025-9856

Open original source · Updated Oct 07, 2026

Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.

Original records & references

PUBLISHED 2025-12-13T11:16:57-05:00
MODIFIED 2026-10-07T15:10:00-04:00
INGESTED 2026-10-08T12:35:47-04:00