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CVE-2026-33740

EspoCRM is an open source customer relationship management application. In versions 9.3.3 and below, the POST /api/v1/Email/importEml endpoint contains an Insecure Direct Object Reference (IDOR) vulnerability where the attacker-supplied fileId parameter is used to fetch any attachment directly from the repository without verifying that the current user has authorization to access it. Any authenticated user with Email:create and Import permissions can exploit this to read another user's .eml atta
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b3ddf694c0ab654f3ed955dbe1adeacfccac5315790ab3c3f89ef62bddef76ba
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"espocrm","vendor":"espocrm","versions":[{"status":"affected","version":"< 9.3.4"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:10fbf814c647cacf18489734c57dbd3a5bca729736876d604866a95672812641 · sha256:a4a595cd7b101b9c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:10fbf814c647cacf18489734c57dbd3a5bca729736876d604866a95672812641 · sha256:a4a595cd7b101b9c… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:10fbf814c647cacf18489734c57dbd3a5bca729736876d604866a95672812641 · sha256:a4a595cd7b101b9c… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/espocrm/espocrm/commit/88e3ba6a7b5cab5dbc2298e2a093d3aa383aa95f","tags":["x_refsource_MISC"],"url":"https://github.com/espocrm/espocrm/commit/88e3ba6a7b5cab5dbc2298e2a093d3aa383aa95f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:10fbf814c647cacf18489734c57dbd3a5bca729736876d604866a95672812641 · sha256:a4a595cd7b101b9c… · /containers/cna/references/1
{"name":"https://github.com/espocrm/espocrm/releases/tag/9.3.4","tags":["x_refsource_MISC"],"url":"https://github.com/espocrm/espocrm/releases/tag/9.3.4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:10fbf814c647cacf18489734c57dbd3a5bca729736876d604866a95672812641 · sha256:a4a595cd7b101b9c… · /containers/cna/references/2
{"name":"https://github.com/espocrm/espocrm/security/advisories/GHSA-wr7j-hxf8-hc4w","tags":["x_refsource_CONFIRM"],"url":"https://github.com/espocrm/espocrm/security/advisories/GHSA-wr7j-hxf8-hc4w"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:10fbf814c647cacf18489734c57dbd3a5bca729736876d604866a95672812641 · sha256:a4a595cd7b101b9c… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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