HOMEVULNERABILITIESCVE-2021-4355
MEDIUM

CVE-2021-4355

CWE-862Published: June 7, 2023· Updated: Jun 17, 2026

5.3
CVSS v3.1

Official Description

The Welcart e-Commerce plugin for WordPress is vulnerable to authorization bypass due to missing capability checks on the download_orderdetail_list(), change_orderlist(), and download_member_list() functions called via admin_init hooks in versions up to, and including, 2.2.7. This makes it possible for unauthenticated attackers to download lists of members, products and orders.

NVD Source

Technical Analysis

CVE-2021-4355 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

welcart1 product(s)
welcart e-commerce
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://www.wordfence.com/threat-intel/vulnerabilities/id/671f5ba5-1f18-49fa-aa97-eaebdb3417bb?source=cve
ADVISORYhttps://www.wordfence.com/threat-intel/vulnerabilities/id/671f5ba5-1f18-49fa-aa97-eaebdb3417bb?source=cve

All References (4)

→
https://blog.nintechnet.com/wordpress-welcart-e-commerce-plugin-fixed-vulnerabilities/Exploit
→
https://www.wordfence.com/threat-intel/vulnerabilities/id/671f5ba5-1f18-49fa-aa97-eaebdb3417bb?source=cveThird Party Advisory
→
https://blog.nintechnet.com/wordpress-welcart-e-commerce-plugin-fixed-vulnerabilities/Exploit
→
https://www.wordfence.com/threat-intel/vulnerabilities/id/671f5ba5-1f18-49fa-aa97-eaebdb3417bb?source=cveThird Party Advisory

Quick Facts

CVE IDCVE-2021-4355
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-862
CISA KEVNo
Affected1 vendor(s)
PublishedJun 7, 2023

Related CVEs (CWE-862)

CVE-2024-33566
10.0
CVE-2026-33712
10.0
CVE-2024-6500
10.0
CVE-2025-30416
10.0
CVE-2026-34976
10.0
CVE-2024-52416
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-4355 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2021-4355·NVD