CVE-2026-2557: A vulnerability was detected in cskefu up to 8.0.1

Q: How do I fix CVE-2026-2557?

cskefu: upgrade to newer than 8.0.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-2557 being exploited?

CVE-2026-2557 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-2557 affect?

CVE-2026-2557 affects cskefu. Severity is low (CVSS 3.5). 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 attac

Q: How urgent is CVE-2026-2557?

Priority 22/100. Public exploit reference

Routine

LOW 3.5UPGRADE

CVE-2026-2557 is a low-severity flaw (CVSS 3.5) affecting cskefu. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	3.5 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-79, CWE-94
Published	2026-02-16
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: cskefu

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-16 14:16 UTCPublished CVE record published
2026-06-17 10:31 UTCUpdated Record last modified

cskefu cskefu UPGRADE

Affected: <= 8.0.1

Fixed in: newer than 8.0.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy cskefu || rpm -q cskefu || cskefu --version

2. UPGRADE to newer than 8.0.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade cskefu

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cskefu

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-2557?

cskefu: upgrade to newer than 8.0.1. Exact commands for each OS are on this page.

Is CVE-2026-2557 being exploited?

CVE-2026-2557 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-2557 affect?

CVE-2026-2557 affects cskefu. Severity is low (CVSS 3.5). 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 attac

How urgent is CVE-2026-2557?

Priority 22/100. Public exploit reference

Software pages

Java vulnerabilities

Related CVEs

CVE-2026-2556 MEDIUM 6.3 UPGRADE A security vulnerability has been detected in cskefu up to 8.0.1

References

← Back to latest CVEs