Description
A vulnerability was found in Ascensio System SIA OnlyOffice up to 12.7.0. This issue affects some unknown processing of the file /Products/Projects/Messages.aspx of the component SVG Image Handler. Performing manipulation results in cross site scripting. The attack may be initiated remotely. The exploit has been made public and could be used. The vendor was informed early about this issue and replied: "We are already working on this case, and the issues will be resolved in one of the upcoming patches."
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
Passive
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
Low
Availability (Vulnerable System)
None
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
E
Physical
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
E
Physical
RL
X
RC
Changed
Affected products
- Ascensio System SIA / OnlyOffice12.7.0 – 12.7.0
- Ascensio System SIA / OnlyOffice12.0 – 12.0
- Ascensio System SIA / OnlyOffice12.1 – 12.1
- Ascensio System SIA / OnlyOffice12.2 – 12.2
- Ascensio System SIA / OnlyOffice12.3 – 12.3
- Ascensio System SIA / OnlyOffice12.4 – 12.4
- Ascensio System SIA / OnlyOffice12.5 – 12.5
- Ascensio System SIA / OnlyOffice12.6 – 12.6