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.
Conclusion & alert: CVE-2021-45226 is rated High Exploit Risk (66.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.38%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.08% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.30% | 1.38% | +1.08% |
| 2 | 2025-03-30 | 0.36% | 0.30% | -0.06% |
| 3 | 2025-03-29 | — | 0.36% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| coins-global | coins_construction_cloud | 11.12 | cpe:2.3:a:coins-global:coins_construction_cloud:11.12:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://appsource.microsoft.com/en-us/product/web-apps/constructionindustrysolutionslimited-5057232.coinsconstructioncloud?tab=overview | Patch Product Vendor Advisory |
| https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-051.txt | Exploit Third Party Advisory |
| https://www.syss.de/pentest-blog/multiple-schwachstellen-im-coins-construction-cloud-erp-syss-2021-028/-029/-030/-031/-051/-052/-053 | Third Party Advisory |