PatchSiren cyber security CVE debrief
CVE-2026-28761 Fujitsu Japan Limited CVE debrief
A cross-site request forgery vulnerability exists in Musetheque V4 Information Disclosure for IPKNOWLEDGE V4L1 rev2203.0 and earlier. If a user views a malicious page while logged-in to the affected product, unexpected operations may be done. The vulnerability allows an attacker to perform actions on behalf of the logged-in user without their consent, potentially leading to unauthorized changes or data breaches. Defenders should assess the potential exposure and impact of this vulnerability on their systems.
- Vendor
- Fujitsu Japan Limited
- Product
- Musetheque V4 Information Disclosure for IPKNOWLEDGE
- CVSS
- HIGH 8.5
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-05-15
- Original CVE updated
- 2026-10-26
- Advisory published
- 2026-05-15
- Advisory updated
- 2026-10-26
Who should care
Defenders and administrators of Musetheque V4 Information Disclosure for IPKNOWLEDGE V4L1 rev2203.0 and earlier should assess potential exposure and impact.
Why it matters
Defenders should prioritize verifying exposure and assessing potential impact of the cross-site request forgery vulnerability in Musetheque V4 Information Disclosure for IPKNOWLEDGE V4L1 rev2203.0 and earlier, focusing on user interactions with the affected product.
- Unexpected operations may be performed on the affected product
- User interactions with the affected product may lead to security consequences
Technical summary
A cross-site request forgery vulnerability exists in Musetheque V4 Information Disclosure for IPKNOWLEDGE V4L1 rev2203.0 and earlier. If a user views a malicious page while logged-in to the affected product, unexpected operations may be done. This type of vulnerability can allow attackers to perform unauthorized actions on the affected system, potentially leading to security consequences. The vulnerability is related to how the affected product handles user requests, and defenders should focus on user interactions with the product to assess potential exposure and
Defensive priority
Defenders should prioritize verifying exposure and assessing potential impact, focusing on user interactions with the affected product.
Recommended defensive actions
- Verify exposure by checking user interactions with the affected product
- Assess potential impact of unexpected operations
- Monitor for suspicious activity
Evidence notes
The CVE record and NVD entry provide limited information about the vulnerability, with the NVD entry currently listed as Deferred. The CVE Program record and NVD detail page offer source-provided CVE metadata and official vulnerability assessment, respectively. However, additional details about the vulnerability, such as its scope, severity, and potential impact, are not available. Defenders should verify exposure by checking user interactions with the affected product and assess the
Sources and references
Verified primary and authoritative sources
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CVE-2026-28761 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-28761
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-28761 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-28761
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
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Source reference
Unverified legacy reference
URL: https://jvn.jp/en/jp/JVN69128376/
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.