XenForo < 2.3.13 Missing Authorization via ACP Cache-Rebuild Dispatcher (CVE-2026-73317) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-73317

XenForo < 2.3.13 Missing Authorization via ACP Cache-Rebuild Dispatcher

Answer in brief

CVE-2026-73317 records a Unknown severity vulnerability in XenForo < 2.3.13 Missing Authorization via ACP Cache-Rebuild Dispatcher. The current sources do not mark it as known exploited. The current feed maps XenForo/XenForo (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 8, 2026Updated Sep 8, 2026Source checked Sep 8, 2026First seen by HOL Sep 8, 2026Material review Sep 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 XenForo/XenForo (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
XenForo/XenForogeneric	>=0 <2.3.13	2.3.13

Recommended response

Check inventory. Check lockfiles and deployed manifests for XenForo/XenForo.
Review the reported fix. Update XenForo/XenForo to 2.3.13 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

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

Sources and claim methodology

Upstream source description

XenForo before 2.3.13 contains a missing authorization vulnerability in the ACP cache-rebuild dispatcher that allows limited administrators with only the rebuildCache permission to perform unauthorized approval queue actions by supplying an arbitrary job class and actor user ID in the POST body. Attackers can invoke the approval queue job under any user identity to approve queued user registrations without holding the required approval-queue or moderator permissions, causing the moderation log to attribute actions to an impersonated account.

Quoted source text, attributed separately from HOL analysis.