What is CVE-2021-45226?

CVE-2021-45226 is a medium-severity vulnerability in Coins-Global Coins Construction Cloud, classified under Improper Encoding or Escaping of Output. CVSS score: 6.5/10. Published 2022-01-24.

How severe is CVE-2021-45226?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Coins-Global Coins Construction Cloud

CVE-2021-45226

An issue was discovered in COINS Construction Cloud 11.12. Due to improper validation of user-controlled HTTP headers, attackers can cause it to send password-reset e-mails pointing to arbitrary websites.

Published 2022-01-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.014 (71.2th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Coins-Global Coins Construction Cloud — versions 11.12

Weakness classification (CWE)

CWE-116 — Improper Encoding or Escaping of Output

References

appsource.microsoft.com/en-us/product/web-apps/constructionindustrysolutionslim… (Product, Patch, Vendor Advisory)
www.syss.de/pentest-blog/multiple-schwachstellen-im-coins-construction-cloud-er… (Third Party Advisory)
www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-051.txt (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-45226?: CVE-2021-45226 is a medium-severity vulnerability in Coins-Global Coins Construction Cloud, classified under Improper Encoding or Escaping of Output. CVSS score: 6.5/10. Published 2022-01-24.
How severe is CVE-2021-45226?: Medium severity. CVSS v3 base score is 6.5 out of 10.