How severe is CVE-2026-2557?

CVE-2026-2557 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-2557 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-2557?

CVE-2026-2557 affects Cskefu. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-2557?

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

Does CVE-2026-2557 have an EU (EUVD) identifier?

Yes. CVE-2026-2557 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6088.

When was CVE-2026-2557 published?

CVE-2026-2557 was published on 2026-02-16 and last updated on 2026-06-17.

CVE-2026-2557

CVE-2026-2557 is a low-severity vulnerability in Cskefu with a CVSS 3.x base score of 3.5. 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: Low (CVSS 3.x base score 3.5)
CVSS v2: 4.0
CVSS v4: 2.0
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-6088
Weakness: CWE-79
Affected product: Cskefu
Published: 2026-02-16
Last modified: 2026-06-17

Description

A vulnerability was detected in cskefu up to 8.0.1. Impacted is the function Upload of the file com/cskefu/cc/controller/resource/MediaController.java of the component File Upload. The manipulation results in cross site scripting. The attack may be launched remotely. The exploit is now 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-2026-2557?: A vulnerability was detected in cskefu up to 8.0.1. Impacted is the function Upload of the file com/cskefu/cc/controller/resource/MediaController.java of the component File Upload. The manipulation results in cross site scripting. The attack may be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-2557?: CVE-2026-2557 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-2557 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-2557?: CVE-2026-2557 affects Cskefu. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-2557?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-2557 have an EU (EUVD) identifier?: Yes. CVE-2026-2557 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6088.
When was CVE-2026-2557 published?: CVE-2026-2557 was published on 2026-02-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cskefu:cskefu:*:*:*:*:*:*:*:*

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