CVE-2026-90564 quequnlong shiyi-blog chat sendMsg Endpoint index.vue SysChatMsgMapper.getChatMsgList cross site scripting
Remote attackers can inject malicious scripts via the chat message argument in shiyi-blog, potentially executing code in victim browsers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-90564?
CVE-2026-90564 is a medium-severity cross-site scripting vulnerability in quequnlong shiyi-blog, published on 13 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
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.
Which versions are affected by CVE-2026-90564?
How do I fix CVE-2026-90564?
No fix has been published for CVE-2026-90564 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-90564 being exploited?
There is no known exploitation of CVE-2026-90564 in the wild and no public exploit code.
Sources
Also known as GHSA-5332-wv38-3pxg.