CVE-2025-3999
Published: 28 April 2025
Summary
CVE-2025-3999 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Seeyon Oa Web Application System. Its CVSS base score is 5.1 (Medium).
Operationally, ranked in the top 42.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-12555
Vulnerability details
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…
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site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Validates web inputs to reject script-related content that could produce XSS.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Makes persistent code injection into loaded programs impossible when the executable image itself resides on hardware-protected read-only media.
Dynamically generated code can be produced and executed inside the isolated chamber, preventing host compromise from code-injection payloads.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.
Directly prevents execution of attacker-supplied code written into data memory regions.