CVE-2026-3302: A weakness has been identified in SourceCodester Doctor Appointment System 1.0

Routine

MEDIUM 4.3DOWNGRADE

CVE-2026-3302 is a medium-severity flaw (CVSS 4.3) affecting doctor appointment system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A weakness has been identified in SourceCodester Doctor Appointment System 1.0. Affected by this issue is some unknown functionality of the file /register.php of the component Sign Up Page. Executing a manipulation of the argument Email can lead to cross site scripting. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-79, CWE-94
Published	2026-02-27
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: remyandrade

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

Am I affected?

Timeline

2026-02-27 07:17 UTCPublished CVE record published
2026-06-17 10:43 UTCUpdated Record last modified

remyandrade doctor appointment system 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 doctor-appointment-system || rpm -q doctor-appointment-system || doctor-appointment-system --version

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

apt-cache madison doctor-appointment-system sudo apt install doctor-appointment-system=<VERSION_BEFORE_1.0> sudo apt-mark hold doctor-appointment-system

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

dnf --showduplicates list doctor-appointment-system sudo dnf downgrade doctor-appointment-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add doctor-appointment-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-2026-3302?

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

Is CVE-2026-3302 being exploited?

CVE-2026-3302 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-2026-3302 affect?

CVE-2026-3302 affects doctor appointment system. Severity is medium (CVSS 4.3). A weakness has been identified in SourceCodester Doctor Appointment System 1.0. Affected by this issue is some unknown functionality of the file /register.php of the component Sign Up Page. Executing a manipulation of the argument Email can

How urgent is CVE-2026-3302?

Priority 29/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

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CVE-2025-3179 HIGH 7.3 DOWNGRADE A vulnerability classified as critical has been found in projectworlds Online Doctor Appointment Booking Syste
CVE-2025-3178 HIGH 7.3 DOWNGRADE A vulnerability was found in projectworlds Online Doctor Appointment Booking System 1.0

References

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