CVE-2026-23604

GFI MailEssentials AI < 22.4 Keyword Filtering Rule Stored XSS

CVSS 5.1 MEDIUMEPSS 0.2%CWE-79

Vexday Risk Score

13Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 5.1EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Ciclo de vida

19 fev 2026Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the Keyword Filtering rule creation workflow. An authenticated user can supply HTML/JavaScript in the ctl00$ContentPlaceHolder1$pv1$TXB_RuleName parameter to /MailEssentials/pages/MailSecurity/contentchecking.aspx, which is stored and later rendered in the management interface, allowing script execution in the context of a logged-in user.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Produtos afetados

GFI Software · MailEssentials AI

Quer saber se a sua infraestrutura está exposta a isto?

Falar com a TrueHacking →

Referências

https://gfi.ai/products-and-solutions/network-security-solutions/mailessentials/resources/documentation/product-releases https://www.vulncheck.com/advisories/gfi-mailessentials-ai-keyword-filtering-rule-stored-xss