SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-20734

Cross-site scripting vulnerability in Welcart e-Commerce versions prior to 2.2.4 allows remote attackers to inject arbitrary script or HTML via unspecified vectors.

MEDIUM 6.1EPSS 1.04%

Does this matter?

Lower severity and a low EPSS score (1.04%). Track it; it rarely justifies an emergency change on its own.

Description

Cross-site scripting vulnerability in Welcart e-Commerce versions prior to 2.2.4 allows remote attackers to inject arbitrary script or HTML via unspecified vectors.

CVSS 3.1
6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
1.04% probability · 64th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Affected
welcart/welcart e-commerce
Source
vultures@jpcert.or.jp
EPSS trend
0%3%5%26 October 2026: 1.04%26 October 202626 October 2026

EPSS 1.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.