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Vulnerability record · CVE-2019-17493 · published 10 October 2019

CVE-2019-17493: Jnoj jiangnan online judge cross-site scripting vulnerability

Jnoj · Jiangnan Online Judge

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

6.1 CVSS 3.1 Medium EPSS 1.1% · top 36.6% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score, v2 4.3
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/shi-yang/jnoj/issues/51 ExploitThird Party Advisory
https://github.com/shi-yang/jnoj/issues/51 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2019-17490Jnoj jiangnan online judge unrestricted file upload vulnerabilityapp\modules\polygon\controllers\ProblemController in Jiangnan Online Judge (aka jnoj) 0.8.0 allows arbitrary file upload, as demonstrated by PHP code…EPSS 1.5%7.5CVE-2019-17537Jnoj jiangnan online judge path traversal vulnerabilityJiangnan Online Judge (aka jnoj) 0.8.0 has Directory Traversal for file deletion via the web/polygon/problem/deletefile?id=1&name=../ substring.EPSS 1.6%7.5CVE-2019-17538Jnoj jiangnan online judge path traversal vulnerabilityJiangnan Online Judge (aka jnoj) 0.8.0 has Directory Traversal for file reading via the web/polygon/problem/viewfile?id=1&name=../ substring.EPSS 11%6.1CVE-2019-17489Jnoj jiangnan online judge cross-site scripting vulnerabilityJiangnan Online Judge (aka jnoj) 0.8.0 has XSS via the Problem[title] parameter to web/polygon/problem/create or web/polygon/problem/update or web/ad…EPSS 1.1%6.1CVE-2019-17491Jnoj jiangnan online judge cross-site scripting vulnerabilityJiangnan Online Judge (aka jnoj) 0.8.0 has XSS via the Problem[description] parameter to web/admin/problem/create or web/polygon/problem/update.EPSS 1.1%6.1CVE-2026-42897Microsoft Exchange Server XSS enables spoofingMicrosoft Exchange Server and Exchange Server Subscription Edition fail to neutralize input during web page generation, a cross-site scripting flaw (…KEVEPSS 0.52%analysed6.1CVE-2025-48700Zimbra Classic UI stored XSS via crafted email HTMLZimbra Collaboration Suite Classic UI fails to properly sanitize HTML content in email messages, allowing crafted tag structures and attribute values…KEVEPSS 1.7%analysed6.1CVE-2025-66376Zimbra Collaboration Classic UI stored XSS via CSS @import in emailZimbra Collaboration Suite 10 before 10.0.18 and 10.1 before 10.1.13 allows stored cross-site scripting in the Classic UI through CSS @import directi…KEVEPSS 20%analysed

Source: NIST National Vulnerability Database (record CVE-2019-17493), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.