PT-2026-33997 · Seeyon Internet · A8+ Collaborative Management+1

Publicado 2026-04-21 · Atualizado 2026-04-21 · CVE-2019-25714

NVD

CVSS v4.0

9.3

Crítica

Vetor base

AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Seeyon OA A8 contains an unauthenticated arbitrary file write vulnerability in the /seeyon/htmlofficeservlet endpoint that allows remote attackers to write arbitrary files to the web application root by sending specially crafted POST requests with custom base64-encoded payloads. Attackers can write JSP webshells to the web root and execute them through the web server to achieve arbitrary OS command execution with web server privileges. Exploitation evidence was first observed by the Shadowserver Foundation on 2021-03-26 (UTC).

Exploit

Correção

Unrestricted File Upload

Enumeração de Fraquezas

CWE-434

Identificadores relacionados

CVE-2019-25714

Produtos afetados

A8+ Collaborative Management

A8-V5 Collaborative Management

Referências · 8

• 🔥 https://wiki.96.mk/Web%E5%AE%89%E5%85%A8/%E8%87%B4%E8%BF%9Coa/%E8%87%B4%E8%BF%9C%20OA%20A8%20htmlofficeservlet%20getshell%20%E6%BC%8F%E6%B4%9E · Exploit
• 🔥 https://web.archive.org/web/20190821034711/http://wyb0.com/posts/2019/seeyon-htmlofficeservlet-getshell · Exploit
• https://vulncheck.com/advisories/seeyon-office-anywhere-oa-a8-unauthenticated-arbitrary-file-write-via-htmlofficeservlet · Nota
• https://sourceforge.net/software/product/A8 · Nota
• https://fortiguard.com/encyclopedia/ips/48874/seeyon-office-anywhere-htmlofficeservlet-arbitrary-file-upload · Nota
• https://broadcom.com/support/security-center/attacksignatures/detail?asid=31713 · Nota
• https://static-aliyun-doc.oss-cn-hangzhou.aliyuncs.com/download/pdf/90916/Security_Notification_reseller_en-US.pdf · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2019-25714 · Nota de Segurança