How severe is CVE-2025-3397?

CVE-2025-3397 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-3397 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-3397?

CVE-2025-3397 affects Yzmcms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-3397?

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

Does CVE-2025-3397 have an EU (EUVD) identifier?

Yes. CVE-2025-3397 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10309.

When was CVE-2025-3397 published?

CVE-2025-3397 was published on 2025-04-08 and last updated on 2026-06-17.

CVE-2025-3397

CVE-2025-3397 is a medium-severity vulnerability in Yzmcms with a CVSS 3.x base score of 4.3. 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: Medium (CVSS 3.x base score 4.3)
CVSS v2: 5.0
CVSS v4: 5.3
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-10309
Weakness: CWE-79
Affected product: Yzmcms
Published: 2025-04-08
Last modified: 2026-06-17

Description

A vulnerability classified as problematic has been found in YzmCMS 7.1. Affected is an unknown function of the file message.tpl. The manipulation of the argument gourl 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. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2025-3397?: A vulnerability classified as problematic has been found in YzmCMS 7.1. Affected is an unknown function of the file message.tpl. The manipulation of the argument gourl 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. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2025-3397?: CVE-2025-3397 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-3397 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-3397?: CVE-2025-3397 affects Yzmcms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-3397?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-3397 have an EU (EUVD) identifier?: Yes. CVE-2025-3397 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10309.
When was CVE-2025-3397 published?: CVE-2025-3397 was published on 2025-04-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:yzmcms:yzmcms:7.1:*:*:*:*:*:*:*

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