CVE-2026-72583
Last modified
CVE-2026-72583 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. A stored cross-site scripting (XSS) vulnerability in fastschema through v0.15.1 allows a low-privileged authenticated user to upload an SVG file containing malicious JavaScript by bypassing the MIME type allow-list check.. EPSS estimates a 0.15% chance of exploitation in the next 30 days.
Description
A stored cross-site scripting (XSS) vulnerability in fastschema through v0.15.1 allows a low-privileged authenticated user to upload an SVG file containing malicious JavaScript by bypassing the MIME type allow-list check.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| fastschema | fastschema | <= 0.15.1 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-72583?
How severe is CVE-2026-72583?
How do I fix CVE-2026-72583?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-72578A cross-site request forgery (CSRF) vulnerability in FreePBX…8.8
- CVE-2026-72579An OS command injection vulnerability in NASA HyperCP (main …7.5
- CVE-2026-7258In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.…7.5
- CVE-2026-72580An OS command injection vulnerability in duhow/xiaoai-patch …9.8
- CVE-2026-72581A server-side request forgery (SSRF) vulnerability in duhow/…8.6
- CVE-2026-72582A NULL pointer dereference vulnerability in fastschema throu…7.5
- CVE-2026-72584A time-of-check/time-of-use (TOCTOU) race condition in fasts…7.4
- CVE-2026-72585Rejected reason: Red Hat CNA-LR concluded that this CVE is n…
- CVE-2026-72586A missing authentication vulnerability in frangoteam/FUXA th…7.5
- CVE-2026-72587A cache poisoning vulnerability in CoreBunch/Instatic throug…6.1
- CVE-2026-72588A user enumeration vulnerability in bluewave-labs/Checkmate …5.3
- CVE-2026-72589An OS command injection vulnerability in alseambusher/cronta…9.8
Are you affected by CVE-2026-72583?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST