CVE-2026-90835 michaelliao itranswarp Page Content Rendering Markdown.java Markdown.toHtml cross site scripting
Cross-site scripting in itranswarp Markdown.toHtml allows remote attackers to inject malicious scripts, affecting an unsupported library.
- 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-2026-90835?
CVE-2026-90835 is a medium-severity cross-site scripting vulnerability in michaelliao itranswarp, published on 14 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 flaw has been found in michaelliao itranswarp up to 2.19. The impacted element is the function Markdown.toHtml of the file Markdown.java of the component Page Content Rendering. This manipulation causes cross site scripting. The attack may be initiated remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet. This vulnerability only affects products that are no longer supported by the maintainer.
Which versions are affected by CVE-2026-90835?
How do I fix CVE-2026-90835?
No fix has been published for CVE-2026-90835 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-2026-90835 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90835 exists.
Sources
Also known as GHSA-p8mq-m5f2-pfpc.