CVE-2025-10254

Ascensio System SIA OnlyOffice SVG Image Messages.aspx cross site scripting

CVSS 5.1 MEDIUMEPSS 0.2%CWE-79 CWE-94

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.1EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

11 Sep 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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: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

Affected products

Ascensio System SIA · OnlyOffice

References

https://hkohi.ca/vulnerability/20 https://vuldb.com/?ctiid.323614 https://vuldb.com/?id.323614 https://vuldb.com/?submit.635870