Cross-Site Scripting Vulnerability in Quequnlong Shiyi-Blog by Quequnlong
CVE-2026-90564

5.1MEDIUM

Key Information:

Vendor

Quequnlong

Status
Shiyi-blog
Vendor
CVE Published:
13 September 2026

What is CVE-2026-90564?

A cross-site scripting vulnerability exists in the quequnlong Shiyi-Blog versions 1.0.0 through 1.2.1, specifically within the SysChatMsgMapper.getChatMsgList function. By manipulating the chat_msg argument in the chat sendMsg endpoint located at blog-web/src/views/chat/index.vue, an attacker can execute arbitrary scripts in the context of the affected user. This exploit can be executed remotely and poses significant security risks to users interacting with the chat functionality. The development team has been made aware of this issue but has yet to provide a response.

Affected Version(s)

shiyi-blog 1.0.0-1.2.1

References

https://vuldb.com/vuln/403149
vdb-entrytechnical-description
https://vuldb.com/vuln/403149/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90564
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

JunRoinxxX (VulDB User)
VulDB CNA Team
.