Read the docs
TI-2022-04255 Aliases CVE-2022-4655GHSA-wvc8-26f6-r55r

Welcart e-Commerce < 2.8.9 - Contributor+ Stored XSS via Shortcode

Priority MEDIUM 58Published · Updated

Key facts

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

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

Summary

The Welcart e-Commerce WordPress plugin before 2.8.9 does not validate and escapes one of its shortcode attributes, which could allow users with a role as low as a contributor to perform a Stored Cross-Site Scripting attack.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00476 41st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed Welcart e-Commerce (Unknown): 2.8.9

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

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 2.8.92.8.9Patch availableCNA
  • Welcart e-Commerce VendorUnknown Affected before 2.8.9 Fixed in 2.8.9 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:welcart:welcart_e-commerce:*:*:*:*:*:wordpress:*:*before 2.8.9Vulnerableuscnanbu
  • cpe:2.3:a:welcart:welcart_e-commerce:*:*:*:*:*:wordpress:*:* Versions before 2.8.9 Vulnerable ·uscnanbu

Remediation

  • Fix · CNA Welcart e-Commerce (Unknown) Fixed in 2.8.9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-4655
  2. 2026-10-03 Alias added: GHSA-wvc8-26f6-r55r

References

Exploit 1

  • TI-2023-05484 Welcart e-Commerce < 2.9.5 - Subscriber+ Arbitrary File Upload CVSS 3.1HIGH 8.8
  • TI-2022-03880 Welcart e-Commerce < 2.8.6 - Subscriber+ PHAR Deserialisation 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
See all 35 →

Sources

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