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CVE-2026-109957— EspoCRM before 10.0.7 IDOR via Import attachmentId Parameter

Quick assessment

Affected
espocrm espocrm
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.

EspoCRM 在 10.0.7 版本之前存在一个不安全的直接对象引用（IDOR）漏洞。该漏洞允许具有导入范围权限的已认证用户，通过向 Import 接口提供外部（即不属于当前用户的）attachmentId 来读取其他用户的附件。攻击者可以创建一个指向已知附件 ID 的导入记录，然后调用错误导出接口，将源数据行复制到一个由其自身拥有的、可下载的 CSV 文件中。

CVSS 4.3 · Medium EPSS 0.20% · P10

Affected Version Matrix 2

VendorProduct Version RangeStatus
espocrm espocrm < 10.0.7 affected
10.0.7 unaffected
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I. Basic Information for CVE-2026-109957

Vulnerability Information
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Vulnerability Title
EspoCRM before 10.0.7 IDOR via Import attachmentId Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
EspoCRM before 10.0.7 contains an insecure direct object reference vulnerability that allows authenticated users with Import scope access to read other users' attachments by supplying a foreign attachmentId to the Import endpoint. Attackers can create an Import record referencing a known attachment ID, then call the error export endpoint to copy source rows into a downloadable CSV they own.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
espocrm espocrm 0 ~ 10.0.7 -

II. Public POCs for CVE-2026-109957

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III. Intelligence Information for CVE-2026-109957

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Vendor Advisories for CVE-2026-109957 (2)

Same Patch Batch · espocrm · 2026-10-13 · 3 CVEs total

CVE-2026-109958 4.3 MEDIUM EspoCRM 4.0.0 before 10.0.7 Field-Level Access Bypass via Address-Book Search
CVE-2026-109959 4.3 MEDIUM EspoCRM 4.0.0 before 10.0.7 Field-Level Security Bypass via Note Read Endpoint

IV. Related Vulnerabilities

Same product: espocrm
Same vendor: espocrm
Same weakness: CWE-639

V. Comments for CVE-2026-109957

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