CVE-2026-30403

HIGHNVD 7.57.5—

7.5

There is an arbitrary file read vulnerability in the test connection function of backend database management in wgcloud v3.6.3 and before, which can be used to read any file on the victim's server.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 23.2%
KEV: Not listed

Published

March 19, 2026

Last Modified

April 2, 2026

References (2)

cve@mitrehttps://github.com/TTTlw1024/qwe/issues/2
cve@mitrehttps://github.com/tianshiyeben/wgcloud/issues/97

Data Freshness Timeline

(refreshed 17× 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.

2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-24 16:59 UTCepss_batch
2026-05-22 21:16 UTCepss_batch
2026-05-20 22:38 UTCepss_batch

Frequently asked(5)

What is CVE-2026-30403?

CVE-2026-30403 is a high vulnerability published on March 19, 2026. There is an arbitrary file read vulnerability in the test connection function of backend database management in wgcloud v3.6.3 and before, which can be used to read any file on the victim's server.

When was CVE-2026-30403 disclosed?

CVE-2026-30403 was first published in the National Vulnerability Database on March 19, 2026, with the most recent update on April 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-30403 actively exploited?

CVE-2026-30403 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 23.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-30403?

CVE-2026-30403 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2026-30403?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-30403, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-30403

Explore →

Is Your Infrastructure Affected by CVE-2026-30403?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2026-30403

📅 Published

🔄 Last Modified

🔗 References (2)