Unknown severity · Source severity not reportedCVE-2026-86827

BackWPup 3.3 - 5.7.6 - Unauthenticated Backup Job Execution via wp-cron.phpCVE-2026-86827

Answer in brief

CVE-2026-86827 records a Unknown severity vulnerability in BackWPup 3.3 - 5.7.6 - Unauthenticated Backup Job Execution via wp-cron.php. The current sources do not mark it as known exploited. The current feed maps Unknown/BackWPup (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 Oct 8, 2026Updated Oct 8, 2026Source checked Oct 8, 2026First seen by HOL Oct 8, 2026Material review Oct 8, 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: Available

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 Unknown/BackWPup (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/BackWPupgeneric	>=3.3 <5.7.7	5.7.7

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/BackWPup.
Review the reported fix. Update Unknown/BackWPup to 5.7.7 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Oct 8, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 8, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 8, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source description

The BackWPup WordPress plugin before 5.7.7 does not verify that a request to its cron-triggered backup execution handler actually originates from WordPress's internal scheduled-event dispatch, allowing unauthenticated attackers to force any existing backup job to run immediately, independent of its configured trigger type or schedule.

Quoted source text, attributed separately from HOL analysis.