Directory traversal vulnerability in McAfee Web Gateway (MWG) 7.4.x before 7.4.1, 7.3.x before 7.3.2.6, and 7.2.0.9 and earlier allows remot
Directory traversal vulnerability in McAfee Web Gateway (MWG) 7.4.x before 7.4.1, 7.3.x before 7.3.2.6, and 7.2.0.9 and earlier allows remote authenticated users to read arbitrary files via a crafted request to the web filtering port.
- Published
- Mar 18, 2014
- Updated
- Jun 16, 2026
- EPSS
- 2.1% · 81th percentile
- CWE
- CWE-22
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
17
Monitor
Low priority for now.
- CVSS
- 16 / 40 · 4.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.1%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| mcafee | web gateway | cpe:2.3:a:mcafee:web_gateway |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- mcafee web gateway7.2.0 and later · up to 7.2.0.9 inclusive
- mcafee web gateway7.3.2 and later · before 7.3.2.6
- mcafee web gateway7.4.0 and later · before 7.4.1
Same product
mcafee: all recordsOther highest-scoring records for the same primary product.
- CVE-2019-3638Web Gateway (MWG) - Reflected Cross Site Scripting vulnerability39Monitor
- CVE-2020-7293Web Gateway (MWG) - Privilege Escalation vulnerability36Monitor
- CVE-2021-23885Privilege escalation vulnerability in McAfee Web Gateway (MWG) UI35Monitor
- CVE-2019-3639MWG UI: Cross-Frame Scripting vulnerability28Monitor
- CVE-2019-3635MWG Proxy: Cross-Frame Scripting vulnerability26Monitor
- CVE-2022-1254SWG URL redirection vulnerability24Monitor
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
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
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.
No dated events beyond publication.
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 researchersFinders, 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
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- P · data can be read
- Integrity
- none
- Availability
- none
- Attack complexity
- Low
- Confidentiality impact
- P
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')CVSS vector
AV:N/AC:L/Au:S/C:P/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 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
const file = path.join(ROOT, req.query.name);res.sendFile(file);Fixed
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.
Attack patterns (CAPEC)
- Path TraversalCAPEC-126likelihood: High · Very High
- Using Slashes and URL Encoding Combined to Bypass Validation LogicCAPEC-64likelihood: High · High
- Manipulating Web Input to File System CallsCAPEC-76likelihood: High · Very High
- Using Escaped Slashes in Alternate EncodingCAPEC-78likelihood: High · High
- Using Slashes in Alternate EncodingCAPEC-79likelihood: High · High
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 helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- secunia.com/advisories/56958
- www.securityfocus.com/bid/66193
- exchange.xforce.ibmcloud.com/vulnerabilities/91772
- kc.mcafee.com/corporate/index?page=content&id=SB10063
Vendor advisories and official records. Exploit/PoC links are deliberately left out.