Simple Ajax Chat < 20260827 - Unauthenticated Stored XSS via Chat Message Linkification (CVE-2026-81807) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-81807

Simple Ajax Chat < 20260827 - Unauthenticated Stored XSS via Chat Message Linkification

Answer in brief

CVE-2026-81807 records a Unknown severity vulnerability in Simple Ajax Chat < 20260827 - Unauthenticated Stored XSS via Chat Message Linkification. The current sources do not mark it as known exploited. The current feed maps Unknown/Simple Ajax Chat (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 2, 2026Updated Sep 2, 2026Source checked Sep 2, 2026First seen by HOL Sep 2, 2026Material review Sep 2, 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/Simple Ajax Chat (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/Simple Ajax Chatgeneric	>=0 <20260827	20260827

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/Simple Ajax Chat.
Review the reported fix. Update Unknown/Simple Ajax Chat to 20260827 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 2, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 2, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 2, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source description

The Simple Ajax Chat WordPress plugin before 20260827 does not escape chat message content before rendering it, allowing unauthenticated users to inject arbitrary HTML attributes into the page and run scripts in the browser of anyone viewing the chat, including administrators.

Quoted source text, attributed separately from HOL analysis.