Ninja Forms - Scheduled Exports <= 3.0.3 - Authenticated (Subscriber+) Stored Cross-Site Scripting via REST API Parameters (CVE-2026-87870) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-87870

Ninja Forms - Scheduled Exports <= 3.0.3 - Authenticated (Subscriber+) Stored Cross-Site Scripting via REST API Parameters

Answer in brief

CVE-2026-87870 records a Unknown severity vulnerability in Ninja Forms - Scheduled Exports <= 3.0.3 - Authenticated (Subscriber+) Stored Cross-Site Scripting via REST API Parameters. The current sources do not mark it as known exploited. The current feed maps Saturday Drive/Ninja Forms - Scheduled Exports (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 10, 2026Updated Sep 10, 2026Source checked Sep 10, 2026First seen by HOL Sep 10, 2026Material review Sep 10, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Saturday Drive/Ninja Forms - Scheduled Exports (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Saturday Drive/Ninja Forms - Scheduled Exportsgeneric	0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Saturday Drive/Ninja Forms - Scheduled Exports.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 10, 2026

Sources and claim methodology

Upstream source description

The Ninja Forms - Scheduled Exports plugin for WordPress is vulnerable to Stored Cross-Site Scripting via REST API Parameters (interval, format, emailTo) in all versions up to, and including, 3.0.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level privileges and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The REST endpoint is registered without a permission_callback and only validates a nonce without checking user capabilities.

Quoted source text, attributed separately from HOL analysis.