RCE in Michaelliao Itranswarp
CVE-2026-90835
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.
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 (28.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.4% 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
- Michaelliao Itranswarp — versions 2.0, 2.1, 2.10
Weakness classification (CWE)
References
- github.com/michaelliao/itranswarp/ (product)
- github.com/michaelliao/itranswarp/issues/74 (issue-tracking, exploit)
- vuldb.com/cve/CVE-2026-90835 (third-party-advisory)
- vuldb.com/submit/925324 (third-party-advisory)
- vuldb.com/vuln/403334 (technical-description, vdb-entry)
- vuldb.com/vuln/403334/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-90835?
- CVE-2026-90835 is a low-severity vulnerability in Michaelliao Itranswarp, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-09-14.
- How severe is CVE-2026-90835?
- Low severity. CVSS v3 base score is 3.5 out of 10.