Server-Side Request Forgery Vulnerability in zhayujie ChatGPT-on-WeChat CowAgent
CVE-2026-15628

5.3MEDIUM

Key Information:

Vendor

Zhayujie

Status
Chatgpt-on-wechat Cowagent
Vendor
CVE Published:
14 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-15628?

A security issue has been found in zhayujie ChatGPT-on-WeChat CowAgent that allows for server-side request forgery (SSRF). This vulnerability affects the Vision Tool component, specifically the Vision._download_to_data_url function within the vision.py file. By manipulating the 'image' argument, an attacker could exploit this flaw remotely, enabling unauthorized server requests. The vulnerability has been publicly disclosed, highlighting the urgency of remediation through upgrading to version 2.1.2, which includes a necessary patch. Users are advised to take immediate action to secure their systems.

Affected Version(s)

chatgpt-on-wechat CowAgent 2.1.0

chatgpt-on-wechat CowAgent 2.1.1

chatgpt-on-wechat CowAgent 2.1.2

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-2026-15628 - Proof of Concept

References

https://vuldb.com/vuln/378130
vdb-entrytechnical-description
https://vuldb.com/vuln/378130/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-15628
third-party-advisory

CVSS V4

Score:
5.3
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

Eric-e (VulDB User)
.