CVE-2026-2622 Blossom Article Title ArticleController.java content cross site scripting
Remote attackers can inject malicious scripts via article titles in Blossom, potentially leading to code execution or account takeover.
- 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-2026-2622?
CVE-2026-2622 is a medium-severity cross-site scripting vulnerability in Blossom, published on 17 Feb 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 detected in Blossom up to 1.17.1. This vulnerability affects the function content of the file blossom-backend/backend/src/main/java/com/blossom/backend/server/article/draft/ArticleController.java of the component Article Title Handler. The manipulation results in cross site scripting. The attack can be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-2622?
It affects 1 product.
Products include Wangyunf Blossom.
How do I fix CVE-2026-2622?
No fix has been published for CVE-2026-2622 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-2026-2622 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2622 exists.
Other vulnerabilities in Blossom
Sources
Also known as GHSA-rm24-2x6v-8w7f.