App Builder 3.8.4 - 5.7.0 - Unauthenticated Option Write and Redirect via includes/pure.php

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

The App Builder WordPress plugin before 5.7.1 does not require authentication or authorisation before writing attacker-supplied data to one of its options and, on a separate unauthenticated request, redirecting the visitor's browser to a URI built from that stored data.

Source published

19 Oct 2026 06:46:21 UTC

Source modified

19 Oct 2026 09:31:20 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N