What is CVE-2025-10254?

CVE-2025-10254 is a low-severity vulnerability in Ascensio System Sia Onlyoffice, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2025-09-11.

How severe is CVE-2025-10254?

Low severity. CVSS v3 base score is 3.5 out of 10.

RCE in Ascensio System Sia Onlyoffice

CVE-2025-10254

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…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (15.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.

Affected products

Ascensio System Sia Onlyoffice — versions 12.0, 12.1, 12.2

Weakness classification (CWE)

References

cna@vuldb.com (vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2025-10254?: CVE-2025-10254 is a low-severity vulnerability in Ascensio System Sia Onlyoffice, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2025-09-11.
How severe is CVE-2025-10254?: Low severity. CVSS v3 base score is 3.5 out of 10.