The Post Grid < 7.9.5 - Contributor+ Stored HTML/iframe Injection via wp_kses_post Allow-List Widening
The Post Grid WordPress plugin before 7.9.5 does not limit an expansion of the WordPress allowed-HTML list to its own markup and applies it site-wide, allowing users with the Contributor role and above to store iframe, style and input elements that are normally stripped from their content, leading to HTML injection (phishing frames, CSS defacement and spoofed input forms) that renders to any visitor and to administrators reviewing the content.
CVE-2026-84151
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-84151
The Post Grid
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Unknown",
"product": "The Post Grid",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "7.9.5",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-84151
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #533 · Revision 1
- Added to Heist Feed
- Publisher date