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CVE-2026-28761

8.5
High
EPSS 0.13%May 15, 2026

CSRF in Musetheque V4 can trigger unauthorized actions while user is logged in.

common questions

Is CVE-2026-28761 being exploited?

Not confirmed. CVE-2026-28761 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.13% probability of exploitation in the next 30 days.

How severe is CVE-2026-28761?

CVE-2026-28761 is rated High with a CVSS score of 8.5. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-28761?

Not known from our data. No patch reference has been recorded for CVE-2026-28761, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.

What does CVE-2026-28761 affect?

CVE-2026-28761 affects Musetheque V4 IPKNOWLEDGE V4L1 rev2203.0 and earlier. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-28761?

Apply patch when available; enforce CSRF defense and anti-forgery checks.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
Musetheque V4 IPKNOWLEDGE V4L1 rev2203.0 and earlier
impact

CSRF allows forged requests from a logged-in user to perform actions and disclose data.

action required

Patch when possible

affected versions
Fujitsu Japan Limited Musetheque V4 Information Disclosure for IPKNOWLEDGE
  • affectedV4L1 rev2203.0 and earlier

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
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