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CVE-2023-27856· NVD / CVE Program· CNA Rockwell

Rockwell Automation ThinManager ThinServer Path Traversal Download

In affected versions, path traversal exists when processing a message of type 8 in Rockwell Automation's ThinManager ThinServer. An unauthenticated remote attacker can exploit this vulnerability to download arbitrary files on the disk drive where ThinServer.exe is installed.

HighCVSS 7.5 · v3.1—Weaponized No fix recorded
Published
Mar 21, 2023
Updated
Jun 17, 2026
EPSS
77.2% · 100th percentile
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Report tools

JSON

Action score

53

Plan

Add it to your regular patch cycle.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
23 / 30 · 77.2%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.5
CNA · Rockwell
7.5
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
rockwellautomationthinmanager

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • rockwellautomation thinmanager6.0.0 and later · up to 10.0.2 inclusive
  • rockwellautomation thinmanager11.0.0 and later · up to 11.0.5 inclusive
  • rockwellautomation thinmanager11.1.0 and later · up to 11.1.5 inclusive
  • rockwellautomation thinmanager11.2.0 and later · up to 11.2.6 inclusive
  • rockwellautomation thinmanager12.0.0 and later · up to 12.0.4 inclusive
  • rockwellautomation thinmanager12.1.0 and later · up to 12.1.5 inclusive
  • rockwellautomation thinmanager13.0.0
  • rockwellautomation thinmanager13.0.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Rockwell). Independent of NVD's CPE analysis and usually ahead of it.

  • Rockwell Automation ThinManager ThinServer

    • 6.x - 10.x, 11.0.0 - 11.0.5, 11.1.0 - 11.1.5, 11.2.0 - 11.2.6, 12.0.0 - 12.0.4, 12.1.0 - 12.1.5, 13.0.0 - 13.0.1affected

Same product

rockwellautomation: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-38742Rockwell Automation ThinManager Software Vulnerable to Arbitrary Code Execution and Denial-Of-Service Attack
    46Plan
  • CVE-2024-10386Rockwell Automation FactoryTalk ThinManager Authentication Vulnerability
    43Plan
  • CVE-2023-27855Rockwell Automation ThinManager ThinServer Path Traversal Upload
    43Plan
  • CVE-2024-45826ThinManager® Code Execution Vulnerability
    38Monitor
  • CVE-2024-5989Rockwell Automation ThinManager® ThinServer™ Improper Input Validation Vulnerability
    38Monitor
  • CVE-2024-5988Rockwell Automation ThinManager® ThinServer™ Improper Input Validation Vulnerability
    38Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Metasploit module ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Metasploit moduleauxiliary/gather/thinmanager_traversal_downloadThinManager Path Traversal (CVE-2023-27856) Arbitrary File Downloadauxiliary2023-04-05

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. Metasploit+14 d
  3. TodaySep 29, 2026+1288 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

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

nvd-primary

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

The bug in code

The whole CWE-22 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
const file = path.join(ROOT, req.query.name);res.sendFile(file);

Fixed

ts
const file = path.resolve(ROOT, req.query.name);if (!file.startsWith(ROOT + path.sep)) {  return res.sendStatus(400);}res.sendFile(file);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records