CVE-2021-20735

Name: CVE-2021-20735
Creator: NVD / NIST
Published: 2021-06-22T02:15:07.217+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.12%

Last modified Jun 17, 2026

CVE-2021-20735 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Cross-site scripting vulnerability in ETUNA EC-CUBE plugins (Delivery slip number plugin (3.0 series) 1.0.10 and earlier, Delivery slip number csv bulk registration plugin (3.0 series) 1.0.8 and earlier, and Delivery slip number mail plugin (3.0 series) 1.0.8 and earlier) allows remote attackers to inject an arbitrary script by executing a specific operation on the management page of EC-CUBE.. EPSS estimates a 1.12% chance of exploitation in the next 30 days.

Description

Cross-site scripting vulnerability in ETUNA EC-CUBE plugins (Delivery slip number plugin (3.0 series) 1.0.10 and earlier, Delivery slip number csv bulk registration plugin (3.0 series) 1.0.8 and earlier, and Delivery slip number mail plugin (3.0 series) 1.0.8 and earlier) allows remote attackers to inject an arbitrary script by executing a specific operation on the management page of EC-CUBE.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

1.12%

62.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Ec-Cube	Delivery Slip Number	<= 1.0.10
Ec-Cube	Delivery Slip Number Csv Bulk Registration	<= 1.0.8
Ec-Cube	Delivery Slip Number Mail	<= 1.0.8

References

https://jvn.jp/en/jp/JVN79254445/index.htmlThird Party Advisory
https://www.ec-cube.net/release/detail.php?release_id=5087Vendor Advisory
https://www.ec-cube.net/release/detail.php?release_id=5088Vendor Advisory
https://www.ec-cube.net/release/detail.php?release_id=5089Vendor Advisory
https://jvn.jp/en/jp/JVN79254445/index.htmlThird Party Advisory
https://www.ec-cube.net/release/detail.php?release_id=5087Vendor Advisory
https://www.ec-cube.net/release/detail.php?release_id=5088Vendor Advisory
https://www.ec-cube.net/release/detail.php?release_id=5089Vendor Advisory

Timeline

Published: Jun 22, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-20735?

How severe is CVE-2021-20735?

CVE-2021-20735 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.12% probability of exploitation in the next 30 days.

How do I fix CVE-2021-20735?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-20735?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST