CVE-2021-38704: Multiple reflected cross-site scripting (XSS) vulnerabilities in ClinicCases 7.3.3 allow unauthenticated attac

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MEDIUM 6.1DOWNGRADE

CVE-2021-38704 is a medium-severity flaw (CVSS 6.1) affecting cliniccases. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple reflected cross-site scripting (XSS) vulnerabilities in ClinicCases 7.3.3 allow unauthenticated attackers to introduce arbitrary JavaScript by crafting a malicious URL. This can result in account takeover via session token theft.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	3.5% (top 11%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-09-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cliniccases

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

Am I affected?

Timeline

2021-09-07 20:15 UTCPublished CVE record published
2026-06-17 04:02 UTCUpdated Record last modified

cliniccases cliniccases DOWNGRADE

Affected: 7.3.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.3.3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 7.3.3 (Debian / Ubuntu)

apt-cache madison cliniccases sudo apt install cliniccases=<VERSION_BEFORE_7.3.3> sudo apt-mark hold cliniccases

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

dnf --showduplicates list cliniccases sudo dnf downgrade cliniccases-<VERSION_BEFORE_7.3.3> sudo dnf versionlock add cliniccases

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: ClinicCases 7.3.3 Cross-Site Scripting

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-2021-38704?

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

Is CVE-2021-38704 being exploited?

CVE-2021-38704 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-2021-38704 affect?

CVE-2021-38704 affects cliniccases. Severity is medium (CVSS 6.1). Multiple reflected cross-site scripting (XSS) vulnerabilities in ClinicCases 7.3.3 allow unauthenticated attackers to introduce arbitrary JavaScript by crafting a malicious URL. This can result in account takeover via session token theft.

How urgent is CVE-2021-38704?

Priority 49/100. Public exploit reference

Related CVEs

CVE-2021-38707 MEDIUM 5.4 DOWNGRADE Persistent cross-site scripting (XSS) vulnerabilities in ClinicCases 7.3.3 allow low-privileged attackers to i
CVE-2021-38706 HIGH 8.8 DOWNGRADE messages_load.php in ClinicCases 7.3.3 suffers from a blind SQL injection vulnerability, which allows low-priv
CVE-2021-38705 HIGH 8.8 DOWNGRADE ClinicCases 7.3.3 is affected by Cross-Site Request Forgery (CSRF)

References

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