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PatchSiren cyber security CVE debrief

CVE-2026-39169 SEMCMS CVE debrief

CVE-2026-39169 is a HIGH-severity vulnerability (CVSS Score: 7.5) affecting SEMCMS 5.0. The vulnerability allows for unauthorized access in SEMCMS_copy.php. The CVE was published on [cvePublishedAt]2026-06-09T19:17:48.183Z[/cvePublishedAt] and modified on [cveModifiedAt]2026-06-09T21:17:11.650Z[/cveModifiedAt].

Vendor
SEMCMS
Product
SEMCMS 5.0
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-09
Advisory published
2026-06-09
Advisory updated
2026-06-09

Who should care

Users of SEMCMS 5.0 should be aware of this vulnerability and take necessary actions to mitigate the risk.

Technical summary

The vulnerability is caused by a lack of proper access control in SEMCMS_copy.php, allowing unauthorized access to sensitive data. The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Defensive priority

HIGH

Recommended defensive actions

  • Apply patches or updates provided by the vendor to fix the vulnerability.
  • Restrict access to SEMCMS_copy.php to authorized users only.
  • Monitor the system for suspicious activity.

Evidence notes

The CVE record can be found at [resourceLinkAnnotations id='cve-org']CVE.org[/resourceLinkAnnotations]. The NVD detail page is available at [resourceLinkAnnotations id='nvd']NVD[/resourceLinkAnnotations]. A source reference can be found at [resourceLinkAnnotations id='ref-4']gist.github.com[/resourceLinkAnnotations].

Sources and references

Verified primary and authoritative sources

  • CVE-2026-39169 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-39169

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-39169 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-39169

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.