CVE-2025-4529: A vulnerability was found in Seeyon Zhiyuan OA Web Application System 8.1 SP2

Routine

MEDIUM 4.3DOWNGRADE

CVE-2025-4529 is a medium-severity flaw (CVSS 4.3) affecting oa web application system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in Seeyon Zhiyuan OA Web Application System 8.1 SP2. It has been classified as problematic. Affected is the function Download of the file seeyon\opt\Seeyon\A8\ApacheJetspeed\webapps\seeyon\WEB-INF\lib\seeyon-apps-m3.jar!\com\seeyon\apps\m3\core\controller\M3CoreController.class of the component ZIP File Handler. The manipulation of the argument Name leads to path traversal. It is possible to launch the attack remotely. T

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 53%)
CISA exploited list	No
Weakness	CWE-22
Published	2025-05-11
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: seeyon

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-05-11 04:15 UTCPublished CVE record published
2026-06-17 09:33 UTCUpdated Record last modified

seeyon oa web application system DOWNGRADE

Affected: 8.1 sp2

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.1

1. Check installed version

apt-cache policy oa-web-application-system || rpm -q oa-web-application-system || oa-web-application-system --version

2. No fixed release: DOWNGRADE to a release before 8.1 (Debian / Ubuntu)

apt-cache madison oa-web-application-system sudo apt install oa-web-application-system=<VERSION_BEFORE_8.1> sudo apt-mark hold oa-web-application-system

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list oa-web-application-system sudo dnf downgrade oa-web-application-system-<VERSION_BEFORE_8.1> sudo dnf versionlock add oa-web-application-system

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-4529?

oa web application system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-4529 being exploited?

CVE-2025-4529 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-4529 affect?

CVE-2025-4529 affects oa web application system. Severity is medium (CVSS 4.3). A vulnerability was found in Seeyon Zhiyuan OA Web Application System 8.1 SP2. It has been classified as problematic. Affected is the function Download of the file seeyon\opt\Seeyon\A8\ApacheJetspeed\webapps\seeyon\WEB-INF\lib\seeyon-apps-m

How urgent is CVE-2025-4529?

Priority 27/100. No elevated risk signals yet.

Related CVEs

CVE-2025-4531 MEDIUM 6.3 DOWNGRADE A vulnerability was found in Seeyon Zhiyuan OA Web Application System 8.1 SP2
CVE-2025-4000 LOW 3.5 DOWNGRADE A vulnerability, which was classified as problematic, was found in Seeyon Zhiyuan OA Web Application System 8.
CVE-2025-3999 LOW 3.5 DOWNGRADE A vulnerability, which was classified as problematic, has been found in Seeyon Zhiyuan OA Web Application Syst

References

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