Medium severity · published Oct 31, 2025
CVE-2025-30191
Malicious content from E-Mail can be used to perform a redressing attack
5.4
CVSS
0.2%
EPSS
No
On KEV
Description
Malicious content from E-Mail can be used to perform a redressing attack. Users can be tricked to perform unintended actions or provide sensitive information to a third party which would enable further threats. Attribute values containing HTML fragments are now denied by the sanitization procedure. 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 7.6.3-rev77; through 8.35.111; through 8.38.82; through 8.39.79; through 8.40.57 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-30191
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-30191
documentation.open-xchange.com
https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2025/oxas-adv-2025-0002.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
