High severity · published Oct 15, 2026
CVE-2026-53574
EspoCRM: Blind SQL injection via streamAttachments where-clause complex expression
7.6
CVSS
0.2%
EPSS
No
On KEV
Description
EspoCRM is an open source customer relationship management application. From 8.1.0 until 9.3.8, an authenticated non-administrator can submit a crafted where parameter to the GET entity streamAttachments endpoint because that query path permits complex expressions. Boolean-based blind SQL injection can extract arbitrary database information, including active administrator session tokens, and can enable full privilege escalation. This issue is fixed in version 9.3.8.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ES
espocrm · espocrm
>= 8.1.0, < 9.3.8 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53574
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-53574
github.com
https://github.com/espocrm/espocrm/commit/e4a6aea90886d672f96b5d9a7cb0722e3d3654e1
github.com
https://github.com/espocrm/espocrm/releases/tag/9.3.8
github.com
https://github.com/espocrm/espocrm/security/advisories/GHSA-qgm7-fc9g-fj75
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EspoCRM is a free, open-source customer relationship management platform