Self Cross-Site Scripting (Self-XSS) in Tallos Chat by RD Station Conversas (CVE-2026-4765) | HOL Guard CVE

Medium · CVSS 5.1CVE-2026-4765

Self Cross-Site Scripting (Self-XSS) in Tallos Chat by RD Station Conversas

Answer in brief

CVE-2026-4765 records a Medium severity (CVSS 5.1) vulnerability in Self Cross-Site Scripting (Self-XSS) in Tallos Chat by RD Station Conversas. The current sources do not mark it as known exploited. The current feed maps RD Station Conversas/Tallos 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 Jul 13, 2026Updated Sep 9, 2026Source checked Sep 9, 2026First seen by HOL Jul 13, 2026Material review Sep 9, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.1
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 5.1. 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 RD Station Conversas/Tallos Chat (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
RD Station Conversas/Tallos Chatgeneric	all versions	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for RD Station Conversas/Tallos Chat.
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
Jul 13, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 9, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jul 13, 2026

Sources and claim methodology

Source referenceincibe.es

Upstream source description

Self Cross-Site Scripting (Self-XSS) vulnerability in the RD Station Conversas chat feature. The vulnerability lies in the ‘name’ parameter of the initialisation process due to incorrect sanitisation of user-supplied input. Exploitation allows specially crafted JavaScript code to be injected, which is executed within the context of the user’s own session who provides the payload. The demonstrated impact is limited to the user who enters and executes the payload.

Quoted source text, attributed separately from HOL analysis.