CVE-2025-3241: A vulnerability, which was classified as problematic, was found in zhangyanbo2007 youkefu up to 4.2.0

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MEDIUM 6.3DOWNGRADE

CVE-2025-3241 is a medium-severity flaw (CVSS 6.3) affecting youkefu. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability, which was classified as problematic, was found in zhangyanbo2007 youkefu up to 4.2.0. This affects an unknown part of the file src/main/java/com/ukefu/webim/web/handler/admin/callcenter/CallCenterRouterController.java of the component XML Document Handler. The manipulation of the argument routercontent leads to xml external entity reference. It is possible to initiate the attack remotely. The exploit has been disclosed to the pub

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 49%)
CISA exploited list	No
Weakness	CWE-610, CWE-611
Published	2025-04-04
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: zhangyanbo2007

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

Am I affected?

Timeline

2025-04-04 11:15 UTCPublished CVE record published
2026-06-17 09:19 UTCUpdated Record last modified

zhangyanbo2007 youkefu DOWNGRADE

Affected: 4.2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.2.0

1. Check installed version

apt-cache policy youkefu || rpm -q youkefu || youkefu --version

2. No fixed release: DOWNGRADE to a release before 4.2.0 (Debian / Ubuntu)

apt-cache madison youkefu sudo apt install youkefu=<VERSION_BEFORE_4.2.0> sudo apt-mark hold youkefu

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

dnf --showduplicates list youkefu sudo dnf downgrade youkefu-<VERSION_BEFORE_4.2.0> sudo dnf versionlock add youkefu

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-2025-3241?

youkefu: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-3241 being exploited?

CVE-2025-3241 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-2025-3241 affect?

CVE-2025-3241 affects youkefu. Severity is medium (CVSS 6.3). A vulnerability, which was classified as problematic, was found in zhangyanbo2007 youkefu up to 4.2.0. This affects an unknown part of the file src/main/java/com/ukefu/webim/web/handler/admin/callcenter/CallCenterRouterController.java of th

How urgent is CVE-2025-3241?

Priority 40/100. Public exploit reference

Software pages

Java vulnerabilities

Related CVEs

CVE-2025-3381 MEDIUM 6.3 DOWNGRADE A vulnerability, which was classified as critical, was found in zhangyanbo2007 youkefu 4.2.0
CVE-2025-2997 MEDIUM 6.3 DOWNGRADE A vulnerability was found in zhangyanbo2007 youkefu 4.2.0

References

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