Vulnerability · Published May 28, 2026 · Assigned by GitHub_M

CVE-2026-41141EspoCRM: IDOR in EmailTemplate Prepare Endpoint Leaks Entity Data via Email Address Lookup

Medium 6.5

In plain English

A medium-severity authorization bypass via user-controlled key in espocrm from espocrm. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.3%top 71.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

EspoCRM is an open source customer relationship management application. Prior to 9.3.5, the POST /api/v1/EmailTemplate/:id/prepare endpoint accepts an emailAddress parameter and resolves the owning entity (Contact, Lead, Account, or User) without performing an ACL check. An authenticated user with EmailTemplate read permission can extract all field values of any entity by supplying the target's email address, bypassing read: own or read: team ACL restrictions. This vulnerability is fixed in 9.3.5.

Affected products (as reported)

Vendor	Product	Versions
espocrm	espocrm	< 9.3.5

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

https://github.com/espocrm/espocrm/security/advisories/GHSA-vvmh-mf4h-96hw x_refsource_CONFIRM