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Description

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A vulnerability was determined in Ascensio System SIA OnlyOffice up to 12.7.0. Impacted is an unknown function of the file /Products/Projects/Messages.aspx of the component Comment Handler. Executing manipulation can lead to cross site scripting. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. 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."

In Ascensio System SIA OnlyOffice bis 12.7.0 ist eine Schwachstelle entdeckt worden. Es geht hierbei um eine nicht näher spezifizierte Funktion der Datei /Products/Projects/Messages.aspx der Komponente Comment Handler. Mittels dem Manipulieren mit unbekannten Daten kann eine cross site scripting-Schwachstelle ausgenutzt werden. Der Angriff kann über das Netzwerk erfolgen. Der Exploit steht zur öffentlichen Verfügung.

PUBLISHED Reserved 2025-09-11 | Published 2025-09-11 | Updated 2025-09-11 | Assigner VulDB




MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
LOW: 3.5CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C
LOW: 3.5CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C
4.0AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:C

Problem types

Cross Site Scripting

Code Injection

Product status

12.0
affected

12.1
affected

12.2
affected

12.3
affected

12.4
affected

12.5
affected

12.6
affected

12.7.0
affected

Timeline

2025-09-11:Advisory disclosed
2025-09-11:VulDB entry created
2025-09-11:VulDB entry last update

Credits

0xHamy (VulDB User) reporter

References

vuldb.com/?id.323615 (VDB-323615 | Ascensio System SIA OnlyOffice Comment Messages.aspx cross site scripting) vdb-entry

vuldb.com/?ctiid.323615 (VDB-323615 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.635871 (Submit #635871 | Ascensio System SIA OnlyOffice Community Server 12.7.0 Cross Site Scripting) third-party-advisory

hkohi.ca/vulnerability/21 exploit

cve.org (CVE-2025-10255)

nvd.nist.gov (CVE-2025-10255)

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