How severe is CVE-2026-39170?

CVE-2026-39170 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-39170 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-39170?

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

Does CVE-2026-39170 have an EU (EUVD) identifier?

Yes. CVE-2026-39170 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35971.

When was CVE-2026-39170 published?

CVE-2026-39170 was published on 2026-06-09 and last updated on 2026-06-17.

CVE-2026-39170

CVE-2026-39170 is a medium-severity vulnerability with a CVSS 3.x base score of 6.3. 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-352.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-35971
Weakness: CWE-352
Published: 2026-06-09
Last modified: 2026-06-17

Description

SemCms 5.0 is vulnerable to Cross Site Request Forgery (CSRF) via crafted POST request to /admin/semcms_user.php.

Frequently asked questions

What is CVE-2026-39170?: SemCms 5.0 is vulnerable to Cross Site Request Forgery (CSRF) via crafted POST request to /admin/semcms_user.php.
How severe is CVE-2026-39170?: CVE-2026-39170 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-39170 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-39170?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-39170 have an EU (EUVD) identifier?: Yes. CVE-2026-39170 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35971.
When was CVE-2026-39170 published?: CVE-2026-39170 was published on 2026-06-09 and last updated on 2026-06-17.

References

https://gist.github.com/ql288470-pixel/41e01787357416458212dbbfd06c6d73

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