Code Injection Vulnerability in SeaCMS Template Engine
CVE-2026-82598

6.9MEDIUM

Key Information:

Vendor

SeaCMS

Status
Seacms
Vendor
CVE Published:
31 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-82598?

A vulnerability exists in SeaCMS, specifically affecting the Template Engine's search.php file within the parseIf function. This flaw allows an attacker to manipulate the searchtype argument, potentially leading to code injection. The exploit can be executed remotely, and its details have been publicly disclosed, which raises the probability of exploitation in the wild. Users are advised to review their implementations and apply appropriate mitigations.

Affected Version(s)

SeaCMS 13.0

SeaCMS 13.1

SeaCMS 13.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-82598 - Proof of Concept

References

https://vuldb.com/vuln/397100
vdb-entrytechnical-description
https://vuldb.com/vuln/397100/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-82598
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

T-Chachamaru (VulDB User)
.