XSS in Jnoj Jiangnan Online Judge

CVE-2019-17491

Jiangnan Online Judge (aka jnoj) 0.8.0 has XSS via the Problem[description] parameter to web/admin/problem/create or web/polygon/problem/update.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.011 (63.4th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2019-17491: held from 0.011 to 0.011.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-17491?
CVE-2019-17491 is a medium-severity vulnerability in Jnoj Jiangnan Online Judge, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-10-10.
How severe is CVE-2019-17491?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2019-17491 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.