CVE-2021-43441: An HTML Injection Vulnerability in iOrder 1.0 allows the remote attacker to execute Malicious HTML codes via t

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MEDIUM 5.3REMOTEDOWNGRADE

CVE-2021-43441 is a medium-severity flaw (CVSS 5.3) affecting iorder. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An HTML Injection Vulnerability in iOrder 1.0 allows the remote attacker to execute Malicious HTML codes via the signup form

Why this priority

Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-12-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: iorder project

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

Am I affected?

Timeline

2021-12-20 20:15 UTCPublished CVE record published
2026-06-17 04:10 UTCUpdated Record last modified

iorder project iorder DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy iorder || rpm -q iorder || iorder --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison iorder sudo apt install iorder=<VERSION_BEFORE_1.0> sudo apt-mark hold iorder

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

dnf --showduplicates list iorder sudo dnf downgrade iorder-<VERSION_BEFORE_1.0> sudo dnf versionlock add iorder

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-2021-43441?

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

Is CVE-2021-43441 being exploited?

CVE-2021-43441 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-2021-43441 affect?

CVE-2021-43441 affects iorder. Severity is medium (CVSS 5.3). An HTML Injection Vulnerability in iOrder 1.0 allows the remote attacker to execute Malicious HTML codes via the signup form

How urgent is CVE-2021-43441?

Priority 41/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-43440 MEDIUM 6.1 DOWNGRADE Multiple Stored XSS Vulnerabilities in the Source Code of iOrder 1.0 allow remote attackers to execute arbitra

References

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