CVE-2017-18048

HIGHNVD 8.88.8—Trending — 3 sources updated this weekWeaponized

8.8

Monstra CMS 3.0.4 allows users to upload arbitrary files, which leads to remote command execution on the server, for example because .php (lowercase) is blocked but .PHP (uppercase) is not.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 99.0%
KEV: Not listed

Published

January 23, 2018

Last Modified

November 21, 2024

References (8)

cve@mitrehttps://blogs.securiteam.com/index.php/archives/3559
cve@mitrehttps://github.com/monstra-cms/monstra/issues/426
cve@mitrehttps://securityprince.blogspot.in/2017/12/monstra-cms-304-arbitrary-file-upload.html
cve@mitrehttps://www.exploit-db.com/exploits/43348/
af854a3a-2127-422b-91ae-364da2661108https://blogs.securiteam.com/index.php/archives/3559
af854a3a-2127-422b-91ae-364da2661108https://github.com/monstra-cms/monstra/issues/426
af854a3a-2127-422b-91ae-364da2661108https://securityprince.blogspot.in/2017/12/monstra-cms-304-arbitrary-file-upload.html
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/43348/

Weakness Classification(1)

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

CWE-434Unrestricted Upload of File with Dangerous Type

Data Freshness Timeline

(refreshed 10× in last 7d / 15× 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.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 12:14 UTCEG score recompute
2026-05-28 12:14 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-23 17:35 UTCOSV refresh

Publicly available exploits

(1 reference)

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

Metasploitexploit/multi/http/monstra_fileupload_exec✓ verified
First seen Dec 18, 2017
Monstra CMS Authenticated Arbitrary File Upload
Open source ↗

Frequently asked(5)

What is CVE-2017-18048?

CVE-2017-18048 is a high vulnerability published on January 23, 2018. Monstra CMS 3.0.4 allows users to upload arbitrary files, which leads to remote command execution on the server, for example because .php (lowercase) is blocked but .PHP (uppercase) is not.

When was CVE-2017-18048 disclosed?

CVE-2017-18048 was first published in the National Vulnerability Database on January 23, 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-2017-18048 actively exploited?

CVE-2017-18048 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2017-18048?

CVE-2017-18048 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2017-18048?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-18048, 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-2017-18048

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2017-18048?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (8)

Frequently asked(5)

Related CVEs(same CWE)