How severe is CVE-2025-4000?

CVE-2025-4000 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-4000 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-4000?

CVE-2025-4000 affects Seeyon Oa Web Application System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-4000?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-4000 have an EU (EUVD) identifier?

Yes. CVE-2025-4000 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12554.

When was CVE-2025-4000 published?

CVE-2025-4000 was published on 2025-04-28 and last updated on 2026-06-17.

CVE-2025-4000

CVE-2025-4000 is a low-severity vulnerability in Seeyon Oa Web Application System with a CVSS 3.x base score of 3.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v2: 4.0
CVSS v4: 5.1
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-12554
Weakness: CWE-79
Affected product: Seeyon Oa Web Application System
Published: 2025-04-28
Last modified: 2026-06-17

Description

A vulnerability, which was classified as problematic, was found in Seeyon Zhiyuan OA Web Application System 8.1 SP2. Affected is an unknown function of the file seeyon\opt\Seeyon\A8\ApacheJetspeed\webapps\seeyon\ssoproxy\jsp\ssoproxy.jsp. The manipulation of the argument Name leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2025-4000?: A vulnerability, which was classified as problematic, was found in Seeyon Zhiyuan OA Web Application System 8.1 SP2. Affected is an unknown function of the file seeyon\opt\Seeyon\A8\ApacheJetspeed\webapps\seeyon\ssoproxy\jsp\ssoproxy.jsp. The manipulation of the argument Name leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-4000?: CVE-2025-4000 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-4000 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-4000?: CVE-2025-4000 affects Seeyon Oa Web Application System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-4000?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-4000 have an EU (EUVD) identifier?: Yes. CVE-2025-4000 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12554.
When was CVE-2025-4000 published?: CVE-2025-4000 was published on 2025-04-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:seeyon:oa_web_application_system:8.1:sp2:*:*:*:*:*:*

More vulnerabilities in Seeyon Oa Web Application System

CVE-2025-4531 — Medium (CVSS 6.3): A vulnerability was found in Seeyon Zhiyuan OA Web Application System 8.1 SP2. It has been rated as critical. Affected…
CVE-2025-4529 — Medium (CVSS 4.3): A vulnerability was found in Seeyon Zhiyuan OA Web Application System 8.1 SP2. It has been classified as problematic.…
CVE-2025-3999 — Low (CVSS 3.5): A vulnerability, which was classified as problematic, has been found in Seeyon Zhiyuan OA Web Application System 8.1…

All CVEs affecting Seeyon Oa Web Application System →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →