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CVE-2026-15321— MyEMS Admin Backend svg.py on_post cross site scripting

Quick assessment

Affected
n/a MyEMS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MyEMS MyEMS是中国MyEMS团队的一款文件管理及其他企业应用软件。 MyEMS 6.4.0及之前版本存在安全漏洞，该漏洞源于Admin Backend组件文件myems-api/core/svg.py中函数on_post的参数new_values['data']操作不当，可能导致跨站脚本攻击。

CVSS 2.4 · Low EPSS 0.39% · P31

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 6

VendorProduct Version RangeStatus
n/a MyEMS 6.0 affected
6.1 affected
6.2 affected
6.3 affected
6.4.0 affected
6.5.0 unaffected
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I. Basic Information for CVE-2026-15321

Vulnerability Information
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Vulnerability Title
MyEMS Admin Backend svg.py on_post cross site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in MyEMS up to 6.4.0. The affected element is the function on_post of the file myems-api/core/svg.py of the component Admin Backend. The manipulation of the argument new_values['data'] results in cross site scripting. The attack can be launched remotely. The exploit has been made public and could be used. Upgrading to version 6.5.0 is sufficient to fix this issue. The patch is identified as 4a97edfbd786c779d0322054833b21ddf54d5b06. It is suggested to upgrade the affected component. The issue report remains open even though there is an official fix for it.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
MyEMS 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MyEMS MyEMS是中国MyEMS团队的一款文件管理及其他企业应用软件。 MyEMS 6.4.0及之前版本存在安全漏洞，该漏洞源于Admin Backend组件文件myems-api/core/svg.py中函数on_post的参数new_values['data']操作不当，可能导致跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- MyEMS 6.0 cpe:2.3:a:myems:myems:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-15321

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III. Intelligence Information for CVE-2026-15321

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Patches & Fixes for CVE-2026-15321 (1)

Vendor Advisories for CVE-2026-15321 (1)

Vendor Pages for CVE-2026-15321 (1)

Same Patch Batch · n/a · 2026-07-10 · 4 CVEs total

CVE-2026-39244 The Brain ADM-ZIP 资源管理错误漏洞
CVE-2026-51119 Invixium IXM WEB 权限许可和访问控制问题漏洞
CVE-2025-70796 WTI Web Management Interface 路径遍历漏洞

IV. Related Vulnerabilities

Same vendor: n/a
Same weakness: CWE-79

V. Comments for CVE-2026-15321

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