RCE in Seeyon Oa Web Application System

CVE-2025-3999

A vulnerability, which was classified as problematic, has been found in Seeyon Zhiyuan OA Web Application System 8.1 SP2. This issue affects some unknown processing of the file seeyon\opt\Seeyon\A8\ApacheJetspeed\webapps\seeyon\common\js\addDate\date.jsp of the component URL Parameter Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (18.6th 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

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-3999?
CVE-2025-3999 is a low-severity vulnerability in Seeyon Oa Web Application System, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2025-04-28.
How severe is CVE-2025-3999?
Low severity. CVSS v3 base score is 3.5 out of 10.