What is CVE-2026-8758?

CVE-2026-8758 is a high-severity vulnerability in Metasoft 美特软件 Metacrm, classified under Improper Access Control. CVSS score: 7.3/10. Published 2026-05-17.

How severe is CVE-2026-8758?

High severity. CVSS v3 base score is 7.3 out of 10.

Arbitrary file upload in Metasoft 美特软件 Metacrm

CVE-2026-8758

A vulnerability was determined in Metasoft 美特软件 MetaCRM up to 6.4.0 Beta06. This impacts an unknown function of the file /common/jsp/upload3.jsp. Executing a manipulation of the argument File can lead to unrestricted upload. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

EPSS: 0.003 (19.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Metasoft 美特软件 Metacrm — versions 6.4.0 Beta06

Weakness classification (CWE)

References

cna@vuldb.com (exploit)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)

Frequently asked questions

What is CVE-2026-8758?: CVE-2026-8758 is a high-severity vulnerability in Metasoft 美特软件 Metacrm, classified under Improper Access Control. CVSS score: 7.3/10. Published 2026-05-17.
How severe is CVE-2026-8758?: High severity. CVSS v3 base score is 7.3 out of 10.