CVE-2018-18777· NVD / CVE Program· CNA mitre

Directory traversal vulnerability in Microstrategy Web, version 7, in "/WebMstr7/servlet/mstrWeb" (in the parameter subpage) allows remote a

Noroxi assessment

Priority: Monitor (action score 24/100)

A ready-made attack module is public (Nuclei); exploiting it takes no special expertise.
Public proof-of-concept code exists (Exploit-DB); there is no record of exploitation in the wild.
Probability of exploitation in the next 30 days: 22.7% (FIRST EPSS); higher than 97.7% of all records.
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.
According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Directory traversal vulnerability in Microstrategy Web, version 7, in "/WebMstr7/servlet/mstrWeb" (in the parameter subpage) allows remote authenticated users to bypass intended SecurityManager restrictions and list a parent directory via a /.. (slash dot dot) in a pathname used by a web application. NOTE: this is a deprecated product.

MediumCVSS 4.3 · v3.0—Proof of concept No fix recorded

Path traversal

Published: Nov 1, 2018
Updated: Jun 16, 2026
EPSS: 22.7% · 97th percentile
CWE: CWE-22

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 17 / 40 · 4.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 7 / 30 · 22.7%

Get told when this record changes

Not in KEV: no record of exploitation in the wild
Proof of concept exists, no weaponized module
No fixed version yet

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
microstrategy	microstrategy web	cpe:2.3:a:microstrategy:microstrategy_web

Affected versions

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

microstrategy microstrategy web7

Same product

microstrategy: all records

Other highest-scoring records for the same primary product.

CVE-2020-11450Microstrategy Web 10.4 exposes the JVM configuration, CPU architecture, installation folder, and other information through the URL /MicroStr
35Monitor
CVE-2020-22983A Server-Side Request Forgery (SSRF) vulnerability exists in MicroStrategy Web SDK 11.1 and earlier, allows remote unauthenticated attackers
33Monitor
CVE-2020-11451The Upload Visualization plugin in the Microstrategy Web 10.4 admin panel allows an administrator to upload a ZIP archive containing files w
29Monitor

Published before and after this one in the same product

← EarlierCVE-2018-18775Nov 1, 2018 · Microstrategy Web, version 7, does not sufficiently encode user-controlled inputs, resulting in a Cross-Site Scripting (XSS) vulnerability v
26Monitor
← EarlierCVE-2018-18776Nov 1, 2018 · Microstrategy Web, version 7, does not sufficiently encode user-controlled inputs, resulting in a Cross-Site Scripting (XSS) vulnerability v
25Monitor
Later →CVE-2019-12475Jul 17, 2019 · In MicroStrategy Web before 10.4.6, there is stored XSS in metric due to insufficient input validation.
24Monitor

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 ×2
Nuclei detection template ×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
Source	Kind	Date
Nuclei detection template	Nuclei template CVE-2018-18777	—
Exploit-DB entry	webapps	2018-10-30
Exploit-DB entry	webapps	2018-10-30

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.

First PoCOct 30, 2018-3 d
PublishedNov 1, 2018
TodayOct 25, 2026+2915 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.

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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: low · data can be read
Integrity: none
Availability: none

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: Low
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:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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

1const file = path.join(ROOT, req.query.name);
2res.sendFile(file);

Fixed

1const file = path.resolve(ROOT, req.query.name);
2if (!file.startsWith(ROOT + path.sep)) {
3  return res.sendStatus(400);
4}
5res.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.

Attack patterns (CAPEC)

ATT&CK techniques

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Change log

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

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