What is CVE-2022-39240?

CVE-2022-39240 is a medium-severity vulnerability in Mygraph Project, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-09-24.

How severe is CVE-2022-39240?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Mygraph Project

CVE-2022-39240

MyGraph is a permission management system. Versions prior to 1.0.4 are vulnerable to a storage XSS vulnerability leading to Remote Code Execution. This issue is patched in version 1.0.4. There is no known workaround.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-09-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (53.3th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.008 · change: +0.001

Affected products

Mygraph Project
Renlm Mygraph — versions < 1.0.4

Weakness classification (CWE)

References

github.com/renlm/MyGraph/security/advisories/GHSA-hj4j-923h-927j (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-39240?: CVE-2022-39240 is a medium-severity vulnerability in Mygraph Project, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-09-24.
How severe is CVE-2022-39240?: Medium severity. CVSS v3 base score is 5.4 out of 10.