Medium severity · published Nov 27, 2025
CVE-2025-59026
Malicious content uploaded as file can be used to execute script code when following attacker-controlled links
5.4
CVSS
0.2%
EPSS
No
On KEV
Description
Malicious content uploaded as file can be used to execute script code when following attacker-controlled links. Unintended actions can be executed in the context of the users account, including exfiltration of sensitive information. Please deploy the provided updates and patch releases. No publicly available exploits are known
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OA
OX App Suite · Open-Xchange GmbH
through 8.35.110; through 8.39.85; through 8.40.73; through 8.41.67 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59026
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-59026
documentation.open-xchange.com
https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2025/oxas-adv-2025-0003.json
More from OX App Suite
9.6
CVE-2023-29050
The optional "LDAP contacts provider" could be abused by privileged users to inject LDAP filter strings that allow to access content outside of the intended hierarchy
8.8
CVE-2023-29048
A component for parsing OXMF templates could be abused to execute arbitrary system commands that would be executed as the non-privileged runtime user
8.1
CVE-2023-29051
User-defined OXMF templates could be used to access a limited part of the internal OX App Suite Java API
7.5
CVE-2025-30188
Malicious or unintentional API requests can be used to add significant amount of data to caches
6.5
CVE-2024-23188
Maliciously crafted E-Mail attachment names could be used to temporarily execute script code in the context of the users browser session