CVE-2018-9126

CRITICALNVD 9.89.8—Elevated

9.8

The DNNArticle module 11 for DNN (formerly DotNetNuke) allows remote attackers to read the web.config file, and consequently discover database credentials, via the /GetCSS.ashx/?CP=%2fweb.config URI.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 99.3%
KEV: Not listed

Published

April 4, 2018

Last Modified

November 21, 2024

References (4)

cve@mitrehttp://packetstormsecurity.com/files/146999/DotNetNuke-DNNarticle-Directory-Traversal.html
cve@mitrehttps://www.exploit-db.com/exploits/44414/
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/146999/DotNetNuke-DNNarticle-Directory-Traversal.html
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/44414/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Data Freshness Timeline

(refreshed 9× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-06 13:45 UTCepss_batch
2026-06-06 13:45 UTCepss_batch
2026-06-05 22:45 UTCepss_batch
2026-06-05 22:45 UTCepss_batch
2026-06-05 06:08 UTCepss_batch
2026-06-05 06:08 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 09:34 UTCEG score recompute
2026-05-28 09:34 UTCGHSA enrichment
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 21:42 UTCOSV refresh

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-44414
First seen Apr 6, 2018
DotNetNuke DNNarticle Module 11 - Directory Traversal
Open source ↗

Frequently asked(5)

What is CVE-2018-9126?

CVE-2018-9126 is a critical vulnerability published on April 4, 2018. The DNNArticle module 11 for DNN (formerly DotNetNuke) allows remote attackers to read the web.config file, and consequently discover database credentials, via the /GetCSS.ashx/?CP=%2fweb.config URI.

When was CVE-2018-9126 disclosed?

CVE-2018-9126 was first published in the National Vulnerability Database on April 4, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-9126 actively exploited?

CVE-2018-9126 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-9126?

CVE-2018-9126 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2018-9126?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-9126, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2018-9126

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-9126?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)