CVE-2021-47757: Chikitsa Patient Management System 2.0.2 contains an authenticated remote code execution vulnerability in the

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HIGH 8.8DOWNGRADE

CVE-2021-47757 is a high-severity flaw (CVSS 8.8) affecting patient management system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Chikitsa Patient Management System 2.0.2 contains an authenticated remote code execution vulnerability in the backup restoration functionality. Authenticated attackers can upload a modified backup zip file with a malicious PHP shell to execute arbitrary system commands on the server.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-434
Published	2026-01-15
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: chikitsa

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

Am I affected?

Timeline

2026-01-15 16:16 UTCPublished CVE record published
2026-06-17 04:18 UTCUpdated Record last modified

chikitsa patient management system DOWNGRADE

Affected: 2.0.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.2

1. Check installed version

apt-cache policy patient-management-system || rpm -q patient-management-system || patient-management-system --version

2. No fixed release: DOWNGRADE to a release before 2.0.2 (Debian / Ubuntu)

apt-cache madison patient-management-system sudo apt install patient-management-system=<VERSION_BEFORE_2.0.2> sudo apt-mark hold patient-management-system

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

dnf --showduplicates list patient-management-system sudo dnf downgrade patient-management-system-<VERSION_BEFORE_2.0.2> sudo dnf versionlock add patient-management-system

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-2021-47757?

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

Is CVE-2021-47757 being exploited?

CVE-2021-47757 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-2021-47757 affect?

CVE-2021-47757 affects patient management system. Severity is high (CVSS 8.8). Chikitsa Patient Management System 2.0.2 contains an authenticated remote code execution vulnerability in the backup restoration functionality. Authenticated attackers can upload a modified backup zip file with a malicious PHP shell to exec

How urgent is CVE-2021-47757?

Priority 51/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2021-47758 HIGH 8.8 DOWNGRADE Chikitsa Patient Management System 2.0.2 contains an authenticated remote code execution vulnerability that al

References

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