RCE in Quequnlong Shiyi-Blog
CVE-2026-90564
A vulnerability was identified in quequnlong shiyi-blog 1.0.0-1.2.1. This impacts the function SysChatMsgMapper.getChatMsgList of the file blog-web/src/views/chat/index.vue of the component chat sendMsg Endpoint. Such manipulation of the argument chat_msg leads to cross site scripting. The attack may be performed from remote. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (28.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Quequnlong Shiyi-Blog — versions 1.0.0-1.2.1
Weakness classification (CWE)
References
- vuldb.com/vuln/403149 (technical-description, vdb-entry)
- vuldb.com/vuln/403149/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-90564 (third-party-advisory)
- vuldb.com/submit/912553 (third-party-advisory)
- gitee.com/quequnlong/shiyi-blog/issues/IK5RVL (issue-tracking)
- gitee.com/quequnlong/shiyi-blog/ (product)
Frequently asked questions
- What is CVE-2026-90564?
- CVE-2026-90564 is a low-severity vulnerability in Quequnlong Shiyi-Blog, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-09-13.
- How severe is CVE-2026-90564?
- Low severity. CVSS v3 base score is 3.5 out of 10.