CVE-2017-4926: VMware vCenter Server vulnerability

CVE-2017-4926: VMware vCenter Server (6.5 prior to 6.5 U1) contains a vulnerability that may allow for stored cross-site s...

VMware vCenter Server (6.5 prior to 6.5 U1) contains a vulnerability that may allow for stored cross-site scripting (XSS). An attacker with VC user privileges can inject malicious java-scripts which will get executed when other VC users access the page.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 16, 2024, 17:59 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2017-4926 is a stored cross-site scripting issue in VMware vCenter Server 6.5 before 6.5 U1. A vCenter user could save malicious JavaScript that later runs in another vCenter user's browser when they view the affected page. Exposure is limited to environments still running vCenter Server 6.5 before 6.5 U1. Risk is higher where many users have vCenter access or where vCenter is reachable beyond tightly controlled administration networks. Prioritize remediation if any legacy vCenter 6.5 pre-U1 systems remain. This is not evidenced as actively exploited in the bundle, but vCenter is a high-value administration platform and stored XSS can undermine trusted operator sessions. Mitigation focus: Upgrade affected vCenter Server 6.5 installations to 6.5 U1 or later per VMware guidance.; Review VMware VMSA-2017-0015 for fixed versions and deployment-specific instructions.; Restrict vCenter access to trusted users and administrative networks..

Prepared: Jun 12, 2026, 20:56 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Sep 15, 2017, 13:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://www.vmware.com/security/advisories/VMSA-2017-0015.htmlCVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

VMwarevCenter Server6.5 prior to 6.5 U1Listed

Weakness

CWE details

No CWE listed

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