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CVE-2018-7777· NVD / CVE Program· CNA schneider

The vulnerability is due to insufficient handling of update_file request parameter on update_module.php in Schneider Electric U.motion Build

The vulnerability is due to insufficient handling of update_file request parameter on update_module.php in Schneider Electric U.motion Builder software versions prior to v1.3.4. A remote, authenticated attacker can exploit this vulnerability by sending a crafted request to the target server.

HighCVSS 8.8 · v3.0—Proof of concept No fix recorded
Published
Jul 3, 2018
Updated
Jun 16, 2026
EPSS
31.8% · 98th percentile
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Action score

45

Plan

Add it to your regular patch cycle.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
10 / 30 · 31.8%

Affected systems

VendorProduct
schneider-electricu.motion builder

Affected versions

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

  • schneider-electric u.motion builderbefore 1.3.4

Versions reported by the vendor

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

  • Schneider Electric SE U.Motion

    • U.motion Builder Software, all versions prior to v1.3.4affected

Same product

schneider-electric: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-7841A SQL Injection (CWE-89) vulnerability exists in U.motion Builder software version 1.3.4 which could cause unwanted code execution when an iKEV
    91Now
  • CVE-2018-7785In Schneider Electric U.motion Builder software versions prior to v1.3.4, a remote command injection allows authentication bypass.
    40Plan
  • CVE-2017-7974A path traversal information disclosure vulnerability exists in Schneider Electric's U.motion Builder software versions 1.2.1 and prior in w
    40Plan
  • CVE-2017-9957A vulnerability exists in Schneider Electric's U.motion Builder software versions 1.2.1 and prior in which the web service contains a hidden
    39Monitor
  • CVE-2017-7973A SQL injection vulnerability exists in Schneider Electric's U.motion Builder software versions 1.2.1 and prior in which an unauthenticated
    39Monitor
  • CVE-2018-7765The vulnerability exists within processing of track_import_export.php in Schneider Electric U.motion Builder software versions prior to v1.3
    36Monitor

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

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Exploit-DB entry ×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
Exploit-DB entrywebapps2020-02-03

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. First PoC+580 d
  3. TodaySep 30, 2026+3011 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.

No credits in the CNA record.

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.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-20 · Improper Input Validation

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

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

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