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Ur51 FirmwareOperating system · Milesight

CVE-2023-43260

MEDIUM · 6.1 CVSS v3.1 Published 2023-10-05
Fix available
A fix is available. Upgrade to 35.3.0.7 or later.
See remediation →
68/100
Remediation priority · Elevated
Public exploit Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Milesight UR5X, UR32L, UR32, UR35, UR41 before v35.3.0.7 was discovered to contain a cross-site scripting (XSS) vulnerability via the admin panel.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-79

Untrusted input is placed into a web page without being neutralised, so an attacker's markup or script executes in another user's browser. That can hijack sessions, capture keystrokes, or silently perform actions as the victim. Fixing it properly means context-aware output encoding everywhere data meets HTML, backed by a content-security policy as a second line of defence.

General guidance for the cross-site scripting (xss) class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Ur51 FirmwareOperating system
Affected:< 35.3.0.7
Ur52 FirmwareOperating system
Affected:< 35.3.0.7
Ur55 FirmwareOperating system
Affected:< 35.3.0.7
Ur32l FirmwareOperating system
Affected:< 35.3.0.7
Ur32 FirmwareOperating system
Affected:< 35.3.0.7
Ur35 FirmwareOperating system
Affected:< 35.3.0.7
Ur41 FirmwareOperating system
Affected:< 35.3.0.7

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 35.3.0.7 or later
Fixed in 35.3.0.7
Recommended fix High confidence

Milesight UR series firmware v35.3.0.7 or later

  1. 1. Identify the specific Milesight UR model (Ur51, Ur52, Ur55, Ur32l, Ur32, Ur35, or Ur41) in use
  2. 2. Access the router's admin panel via web interface
  3. 3. Navigate to the System or Administration section
  4. 4. Locate the Firmware Upgrade or Update section
  5. 5. Download the firmware version 35.3.0.7 or later from the official Milesight support website
  6. 6. Upload the firmware file and apply the update
  7. 7. Verify the firmware version after reboot to confirm the update was successful
Caveat Review Milesight release notes for any configuration or feature changes between versions

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $900. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-43260 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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