How severe is CVE-2025-56263?

CVE-2025-56263 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-56263 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-56263?

CVE-2025-56263 affects By-night Sms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-56263?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-56263 have an EU (EUVD) identifier?

Yes. CVE-2025-56263 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29649.

When was CVE-2025-56263 published?

CVE-2025-56263 was published on 2025-09-16 and last updated on 2026-06-17.

CVE-2025-56263

CVE-2025-56263 is a high-severity vulnerability in By-night Sms with a CVSS 3.x base score of 8.8. 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: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-29649
Weakness: CWE-434
Affected product: By-night Sms
Published: 2025-09-16
Last modified: 2026-06-17

Description

by-night sms V1.0 has an Arbitrary File Upload vulnerability. The /api/sms/upload/headImg endpoint allows uploading arbitrary files. Users can upload files of any size and type.

Frequently asked questions

What is CVE-2025-56263?: by-night sms V1.0 has an Arbitrary File Upload vulnerability. The /api/sms/upload/headImg endpoint allows uploading arbitrary files. Users can upload files of any size and type.
How severe is CVE-2025-56263?: CVE-2025-56263 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-56263 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-56263?: CVE-2025-56263 affects By-night Sms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-56263?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-56263 have an EU (EUVD) identifier?: Yes. CVE-2025-56263 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29649.
When was CVE-2025-56263 published?: CVE-2025-56263 was published on 2025-09-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:by-night:sms:1.0:*:*:*:*:*:*:*

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