How severe is CVE-2026-3187?

CVE-2026-3187 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-2026-3187 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-3187?

CVE-2026-3187 primarily affects Szadmin Sz-boot-parent. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-3187?

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

Does CVE-2026-3187 have an EU (EUVD) identifier?

Yes. CVE-2026-3187 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8659.

When was CVE-2026-3187 published?

CVE-2026-3187 was published on 2026-02-25 and last updated on 2026-06-17.

CVE-2026-3187

CVE-2026-3187 is a medium-severity vulnerability in Szadmin Sz-boot-parent 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-434.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
CVSS v4: 2.1
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-8659
Weakness: CWE-434
Affected product: Szadmin Sz-boot-parent
Published: 2026-02-25
Last modified: 2026-06-17

Description

A vulnerability was identified in feiyuchuixue sz-boot-parent up to 1.3.2-beta. Affected by this issue is some unknown functionality of the file /api/admin/sys-file/upload of the component API Endpoint. Such manipulation leads to unrestricted upload. The attack may be launched remotely. The exploit is publicly available and might be used. Upgrading to version 1.3.3-beta can resolve this issue. The name of the patch is aefaabfd7527188bfba3c8c9eee17c316d094802. Upgrading the affected component is recommended. The project was informed beforehand and acted very professional: "We have introduced a whitelist restriction on the /api/admin/sys-file/upload endpoint via the oss.allowedExts and oss.allowedMimeTypes configuration options, allowing the specification of permitted file extensions and MIME types for uploads."

Frequently asked questions

What is CVE-2026-3187?: A vulnerability was identified in feiyuchuixue sz-boot-parent up to 1.3.2-beta. Affected by this issue is some unknown functionality of the file /api/admin/sys-file/upload of the component API Endpoint. Such manipulation leads to unrestricted upload. The attack may be launched remotely. The exploit is publicly available and might be used. Upgrading to version 1.3.3-beta can resolve this issue. The name of the patch is aefaabfd7527188bfba3c8c9eee17c316d094802. Upgrading the affected component is recommended. The project was informed beforehand and acted very professional: "We have introduced a whitelist restriction on the /api/admin/sys-file/upload endpoint via the oss.allowedExts and oss.allowedMimeTypes configuration options, allowing the specification of permitted file extensions and MIME types for uploads."
How severe is CVE-2026-3187?: CVE-2026-3187 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-2026-3187 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3187?: CVE-2026-3187 primarily affects Szadmin Sz-boot-parent. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-3187?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-3187 have an EU (EUVD) identifier?: Yes. CVE-2026-3187 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8659.
When was CVE-2026-3187 published?: CVE-2026-3187 was published on 2026-02-25 and last updated on 2026-06-17.

References

Affected products (15)

cpe:2.3:a:szadmin:sz-boot-parent:*:*:*:*:*:*:*:*
cpe:2.3:a:szadmin:sz-boot-parent:1.0.0:beta:*:*:*:*:*:*
cpe:2.3:a:szadmin:sz-boot-parent:1.0.1:beta:*:*:*:*:*:*
cpe:2.3:a:szadmin:sz-boot-parent:1.0.2:beta:*:*:*:*:*:*
cpe:2.3:a:szadmin:sz-boot-parent:1.1.0:beta:*:*:*:*:*:*
cpe:2.3:a:szadmin:sz-boot-parent:1.2.0:beta:*:*:*:*:*:*
cpe:2.3:a:szadmin:sz-boot-parent:1.2.1:beta:*:*:*:*:*:*
cpe:2.3:a:szadmin:sz-boot-parent:1.2.2:beta:*:*:*:*:*:*
cpe:2.3:a:szadmin:sz-boot-parent:1.2.3:beta:*:*:*:*:*:*
cpe:2.3:a:szadmin:sz-boot-parent:1.2.4:beta:*:*:*:*:*:*
cpe:2.3:a:szadmin:sz-boot-parent:1.2.5:beta:*:*:*:*:*:*
cpe:2.3:a:szadmin:sz-boot-parent:1.2.6:beta:*:*:*:*:*:*
cpe:2.3:a:szadmin:sz-boot-parent:1.3.0:beta:*:*:*:*:*:*
cpe:2.3:a:szadmin:sz-boot-parent:1.3.1:beta:*:*:*:*:*:*
cpe:2.3:a:szadmin:sz-boot-parent:1.3.2:beta:*:*:*:*:*:*

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