CVE-2026-33733 | EspoCRM up to 9.3.3 Admin Template Management Endpoint name/scope path traversal

VDB-359056 · CVE-2026-33733 · GCVE-0-2026-33733 ESPOCRM UP TO 9.3.3 ADMIN TEMPLATE MANAGEMENT ENDPOINT NAME/SCOPE PATH TRAVERSAL HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.8 $0-$5k 2.25+ Summaryinfo A vulnerability described as problematic has been identified in EspoCRM up to 9.3.3. Impacted is an unknown function of the component Admin Template Management Endpoint. Executing a manipulation of the argument name/scope can lead to path traversal. This vulnerability is handled as CVE-2026-33733. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended. Detailsinfo A vulnerability classified as problematic was found in EspoCRM up to 9.3.3. This vulnerability affects an unknown code block of the component Admin Template Management Endpoint. The manipulation of the argument name/scope with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-23. The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes: EspoCRM is an open source customer relationship management application. Prior to version 9.3.4, the admin template management endpoints accept attacker-controlled `name` and `scope` values and pass them into template path construction without normalization or traversal filtering. As a result, an authenticated admin can use `../` sequences to escape the intended template directory and read, create, overwrite, or delete arbitrary files that resolve to `body.tpl` or `subject.tpl` under the web application user's filesystem permissions. Version 9.3.4 fixes the issue. The advisory is shared for download at github.com. This vulnerability was named CVE-2026-33733 since 03/23/2026. The exploitation appears to be easy. The attack can be initiated remotely. The exploitation needs additional levels of successful authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1006. Upgrading to version 9.3.4 eliminates this vulnerability. Productinfo Name EspoCRM Version 9.3.0 9.3.1 9.3.2 9.3.3 License open-source Website Product: https://github.com/espocrm/espocrm/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.9 VulDB Meta Temp Score: 5.8 VulDB Base Score: 4.7 VulDB Temp Score: 4.5 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 7.2 CNA Vector (GitHub_M): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Path traversal CWE: CWE-23 / CWE-22 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: EspoCRM 9.3.4 Timelineinfo 03/23/2026 CVE reserved 04/22/2026 +29 days Advisory disclosed 04/22/2026 +0 days VulDB entry created 04/22/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-33733 (🔒) GCVE (CVE): GCVE-0-2026-33733 GCVE (VulDB): GCVE-100-359056 Entryinfo Created: 04/22/2026 22:30 Changes: 04/22/2026 22:30 (63) Complete: 🔍 Cache ID: 99:E52:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸