CVE-2021-38707: Persistent cross-site scripting (XSS) vulnerabilities in ClinicCases 7.3.3 allow low-privileged attackers to i

Routine

MEDIUM 5.4DOWNGRADE

CVE-2021-38707 is a medium-severity flaw (CVSS 5.4) affecting cliniccases. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Persistent cross-site scripting (XSS) vulnerabilities in ClinicCases 7.3.3 allow low-privileged attackers to introduce arbitrary JavaScript to account parameters. The XSS payloads will execute in the browser of any user who views the relevant content. 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	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.6% (top 49%)
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.

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-2021-38707?

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

Is CVE-2021-38707 being exploited?

CVE-2021-38707 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-2021-38707 affect?

CVE-2021-38707 affects cliniccases. Severity is medium (CVSS 5.4). Persistent cross-site scripting (XSS) vulnerabilities in ClinicCases 7.3.3 allow low-privileged attackers to introduce arbitrary JavaScript to account parameters. The XSS payloads will execute in the browser of any user who views the releva

How urgent is CVE-2021-38707?

Priority 37/100. Public exploit reference

Related CVEs

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)
CVE-2021-38704 MEDIUM 6.1 DOWNGRADE Multiple reflected cross-site scripting (XSS) vulnerabilities in ClinicCases 7.3.3 allow unauthenticated attac

References

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