CVE-2023-1039: A vulnerability classified as critical was found in SourceCodester Class and Exam Timetabling System 1.0

This week

HIGH 7.3REMOTEDOWNGRADE

CVE-2023-1039 is a high-severity flaw (CVSS 7.3) affecting class and exam timetabling system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability classified as critical was found in SourceCodester Class and Exam Timetabling System 1.0. Affected by this vulnerability is an unknown functionality of the file /admin/index3.php of the component POST Parameter Handler. The manipulation of the argument password leads to sql injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-221797 was assigned to this vu

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-89
Published	2023-02-26
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: class and exam timetabling system project

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

Am I affected?

Timeline

2023-02-26 12:15 UTCPublished CVE record published
2026-06-17 05:26 UTCUpdated Record last modified

class and exam timetabling system project class and exam timetabling 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 class-and-exam-timetabling-system || rpm -q class-and-exam-timetabling-system || class-and-exam-timetabling-system --version

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

apt-cache madison class-and-exam-timetabling-system sudo apt install class-and-exam-timetabling-system=<VERSION_BEFORE_1.0> sudo apt-mark hold class-and-exam-timetabling-system

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

dnf --showduplicates list class-and-exam-timetabling-system sudo dnf downgrade class-and-exam-timetabling-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add class-and-exam-timetabling-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-2023-1039?

class and exam timetabling system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-1039 being exploited?

CVE-2023-1039 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-2023-1039 affect?

CVE-2023-1039 affects class and exam timetabling system. Severity is high (CVSS 7.3). A vulnerability classified as critical was found in SourceCodester Class and Exam Timetabling System 1.0. Affected by this vulnerability is an unknown functionality of the file /admin/index3.php of the component POST Parameter Handler. The

How urgent is CVE-2023-1039?

Priority 50/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

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