CVE-2025-59031 | Open-Xchange OX Dovecot Pro up to 2.3.0 OOXML information disclosure (adv-2026-0001)

VDB-353849 · CVE-2025-59031 · ADV-2026-0001 OPEN-XCHANGE OX DOVECOT PRO UP TO 2.3.0 OOXML INFORMATION DISCLOSURE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.3 $0-$5k 2.16+ Summaryinfo A vulnerability classified as problematic has been found in Open-Xchange OX Dovecot Pro up to 2.3.0. Affected by this issue is some unknown functionality of the component OOXML Handler. The manipulation leads to information disclosure. This vulnerability is traded as CVE-2025-59031. It is possible to initiate the attack remotely. There is no exploit available. Detailsinfo A vulnerability was found in Open-Xchange OX Dovecot Pro up to 2.3.0 and classified as problematic. This issue affects some unknown processing of the component OOXML Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is: Dovecot has provided a script to use for attachment to text conversion. This script unsafely handles zip-style attachments. Attacker can use specially crafted OOXML documents to cause unintended files on the system to be indexed and subsequently ending up in FTS indexes. Do not use the provided script, instead, use something else like FTS tika. No publicly available exploits are known. The advisory is shared at documentation.open-xchange.com. The identification of this vulnerability is CVE-2025-59031 since 09/08/2025. The exploitation is known to be easy. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type Mail Server Software Vendor Open-Xchange Name OX Dovecot Pro Version 2.0 2.1 2.2 2.3.0 License open-source Website Vendor: https://www.open-xchange.com/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.3 VulDB Meta Temp Score: 4.3 VulDB Base Score: 4.3 VulDB Temp Score: 4.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 4.3 CNA Vector: 🔒 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: Information disclosure CWE: CWE-200 / CWE-284 / CWE-266 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: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 09/08/2025 CVE reserved 03/27/2026 +200 days Advisory disclosed 03/27/2026 +0 days VulDB entry created 03/27/2026 +0 days VulDB entry last update Sourcesinfo Vendor: open-xchange.com Advisory: adv-2026-0001 Status: Confirmed CVE: CVE-2025-59031 (🔒) GCVE (CVE): GCVE-0-2025-59031 GCVE (VulDB): GCVE-100-353849 Entryinfo Created: 03/27/2026 09:52 Changes: 03/27/2026 09:52 (63) Complete: 🔍 Cache ID: 99:E60:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸