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SolarWinds Serv-U EUVDEUVD-2026-46295

| CVE-2026-28315 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-07-21 SolarWinds GHSA-27f7-w76r-h7r2
6.2
CVSS 3.1 · Vendor: SolarWinds
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Severity by source

Vendor (SolarWinds) PRIMARY
6.2 MEDIUM
AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N
vuln.today AI
6.2 MEDIUM

High privileges required to plant payload; scope changes because script executes in victim's browser; no integrity or availability impact applies.

3.1 AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N

Primary rating from Vendor (SolarWinds).

CVSS VectorVendor: SolarWinds

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

1
Analysis Generated
Jul 21, 2026 - 16:27 vuln.today

DescriptionCVE.org

SolarWinds Serv-U was found to be affected by a stored cross-site scripting vulnerability that could lead to session hijacking or information disclosure from an administrator account.

AnalysisAI

Stored cross-site scripting in SolarWinds Serv-U enables session hijacking and information disclosure from administrator accounts via malicious script persistence in the application. The vulnerability requires a high-privileged attacker to inject the payload, which then executes in the browser context of any administrator who views the poisoned content - a classic privilege-boundary-crossing XSS pattern confirmed by the CVSS scope-change flag. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate as high-privilege admin
Delivery
Inject stored XSS payload into Serv-U interface field
Exploit
Victim admin browses to poisoned view
Execution
Browser executes malicious script
Persist
Session token exfiltrated to attacker
Impact
Attacker hijacks victim admin session

Vulnerability AssessmentAI

Exploitation The attacker must already hold a high-privilege administrator account on the SolarWinds Serv-U instance (PR:H per the CVSS vector) sufficient to write data into the field containing the stored XSS payload. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS base score of 6.2 reflects a meaningful but bounded risk profile. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker who has compromised or legitimately holds a high-privilege Serv-U administrator account injects a JavaScript payload into a field that is stored by the application and rendered in the administrative interface - for example, a filename, user comment, or configuration label. When a peer administrator subsequently navigates to the affected view, their browser executes the script, which reads the administrator's session cookie and exfiltrates it to an attacker-controlled endpoint. …
Remediation The primary fix is to upgrade SolarWinds Serv-U to version 2026.3, as indicated by the release notes reference at https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_2026-3_release_notes.htm. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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EUVD-2026-46295 vulnerability details – vuln.today

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