CVE-2025-8920 Portabilis i-Diario Dicionário de Termos BNCC dicionario-de-termos-bncc cross site scripting

Medium 4.8 Published 13 Aug 2025 Updated 15 Aug 2025

Remote attackers can inject malicious scripts via the Planos de ensino argument in the Dicionário de Termos BNCC page of Portabilis i-Diario.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2025-8920?

CVE-2025-8920 is a medium-severity cross-site scripting vulnerability in Portabilis i-Diario, published on 13 Aug 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A vulnerability was identified in Portabilis i-Diario 1.6. Affected by this vulnerability is an unknown functionality of the file /dicionario-de-termos-bncc of the component Dicionário de Termos BNCC Page. The manipulation of the argument Planos de ensino leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-94, CWE-79

Which versions are affected by CVE-2025-8920?

It affects 1 product.

Products include Portabilis I-Diario.

How do I fix CVE-2025-8920?

No fix has been published for CVE-2025-8920 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-8920 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8920 exists.

Sources

Also known as GHSA-3jw2-chpc-h229.