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Vulnerabilities

Vulnerability · CVE-2019-17538

jnoj jiangnan_online_judge Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Published Jun 8, 2025 · catalog updated Jun 8, 2025 · jnoj jiangnan_online_judge Improper Limitation

Patch now

CVE-2019-17538 is in the CISA known-exploited catalog. Confirm jnoj jiangnan_online_judge Improper Limitation against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (jnoj jiangnan_online_judge Improper Limitation).
  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
11.30%
Remediation
Remediation guidance
Affected products
vendor jnoj jiangnan_online_judge

Jiangnan Online Judge (aka jnoj) 0.8.0 has Directory Traversal for file reading via the web/polygon/problem/viewfile?id=1&name=../ substring.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor jnoj jiangnan_online_judgeversion unspecified

How to fix CVE-2019-17538

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2019-17538 is in the CISA known-exploited catalog. Confirm jnoj jiangnan_online_judge Improper Limitation against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 11.30%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 8, 2025 · VulnCheck KEV

    Detected

    Jiangnan Online Judge (aka jnoj) 0.8.0 has Directory Traversal for file reading via the web/polygon/problem/viewfile?id=1&name=../ substring.

  2. Jun 8, 2025 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2019-17538

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2019-17538

    30-day exploitation probability 11.3%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2019-17538

    Jiangnan Online Judge (aka jnoj) 0.8.0 has Directory Traversal for file reading via the web/polygon/problem/viewfile?id=1&name=../ substring.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.