What’s Vulnerable › Vulnerabilities

CVE-2025-10254: Ascensio System SIA OnlyOffice SVG Image Messages.aspx cross site scripting

• Severity: low (CVSS 3.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-11 · updated 2026-06-17
• Weakness: CWE-79

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."

Affected products

• Ascensio System SIA OnlyOffice: 12.0, 12.1, 12.2, 12.3, 12.4, 12.5 (+2)

References

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

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