CVE-2021-45227: An issue was discovered in COINS Construction Cloud 11.12

Routine

MEDIUM 5.4DOWNGRADE

CVE-2021-45227 is a medium-severity flaw (CVSS 5.4) affecting coins construction cloud. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in COINS Construction Cloud 11.12. Due to an inappropriate use of HTML IFRAME elements, the file upload functionality is vulnerable to a persistent Cross-Site Scripting (XSS) attack.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-04-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: coins-global

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-04-14 15:15 UTCPublished CVE record published
2026-06-17 04:13 UTCUpdated Record last modified

coins-global coins construction cloud DOWNGRADE

Affected: 11.12

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.12

1. Check installed version

apt-cache policy coins-construction-cloud || rpm -q coins-construction-cloud || coins-construction-cloud --version

2. No fixed release: DOWNGRADE to a release before 11.12 (Debian / Ubuntu)

apt-cache madison coins-construction-cloud sudo apt install coins-construction-cloud=<VERSION_BEFORE_11.12> sudo apt-mark hold coins-construction-cloud

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list coins-construction-cloud sudo dnf downgrade coins-construction-cloud-<VERSION_BEFORE_11.12> sudo dnf versionlock add coins-construction-cloud

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-45227?

coins construction cloud: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-45227 being exploited?

CVE-2021-45227 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-45227 affect?

CVE-2021-45227 affects coins construction cloud. Severity is medium (CVSS 5.4). An issue was discovered in COINS Construction Cloud 11.12. Due to an inappropriate use of HTML IFRAME elements, the file upload functionality is vulnerable to a persistent Cross-Site Scripting (XSS) attack.

How urgent is CVE-2021-45227?

Priority 36/100. Public exploit reference

Related CVEs

CVE-2021-45228 MEDIUM 5.4 DOWNGRADE An XSS issue was discovered in COINS Construction Cloud 11.12
CVE-2021-45226 MEDIUM 6.5 DOWNGRADE An issue was discovered in COINS Construction Cloud 11.12
CVE-2021-45225 MEDIUM 6.1 DOWNGRADE An issue was discovered in COINS Construction Cloud 11.12
CVE-2021-45224 MEDIUM 6.1 DOWNGRADE An issue was discovered in COINS Construction Cloud 11.12
CVE-2021-45223 MEDIUM 6.5 DOWNGRADE An issue was discovered in COINS Construction Cloud 11.12

References

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