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TI-2022-03880 Aliases CVE-2022-4237GHSA-x65c-cg4w-m3j6

Welcart e-Commerce < 2.8.6 - Subscriber+ PHAR Deserialisation

Priority HIGH 73Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

The Welcart e-Commerce WordPress plugin before 2.8.6 does not validate user input before using it in file_exist() functions via various AJAX actions available to any authenticated users, which could allow users with a role as low as subscriber to perform PHAR deserialisation when they can upload a file and a suitable gadget chain is present on the blog

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0115 67th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed Welcart e-Commerce (Unknown): 2.8.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownWelcart e-Commercebefore 2.8.62.8.6Patch availableCNA
  • Welcart e-Commerce VendorUnknown Affected before 2.8.6 Fixed in 2.8.6 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:welcart:welcart_e-commerce:*:*:*:*:*:wordpress:*:*before 2.8.6Vulnerableuscnanbu
  • cpe:2.3:a:welcart:welcart_e-commerce:*:*:*:*:*:wordpress:*:* Versions before 2.8.6 Vulnerable ·uscnanbu

Remediation

  • Fix · CNA Welcart e-Commerce (Unknown) Fixed in 2.8.6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-4237
  2. 2026-10-03 Alias added: GHSA-x65c-cg4w-m3j6

References

Exploit 1

  • TI-2023-05484 Welcart e-Commerce < 2.9.5 - Subscriber+ Arbitrary File Upload CVSS 3.1HIGH 8.8
  • TI-2022-03786 Welcart e-Commerce < 2.8.5 - Unauthenticated Arbitrary File Access CVSS 3.1HIGH 7.5
  • TI-2022-03879 Welcart e-Commerce < 2.8.5 - Subscriber+ Arbitrary File Access CVSS 3.1MEDIUM 6.5
  • TI-2022-03618 Welcart e-Commerce < 2.8.4 - Subscriber+ Arbitrary Shipping Method Creation/Update/Deletion CVSS 3.1MEDIUM 6.5
  • TI-2023-05482 Welcart e-Commerce < 2.9.5 - Reflected XSS CVSS 3.1MEDIUM 6.1
  • TI-2022-04255 Welcart e-Commerce < 2.8.9 - Contributor+ Stored XSS via Shortcode CVSS 3.1MEDIUM 5.4
See all 35 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences