CVE-2023-5813: A vulnerability was found in SourceCodester Task Reminder System 1.0 and classified as critical

Routine

MEDIUM 6.3DOWNGRADE

CVE-2023-5813 is a medium-severity flaw (CVSS 6.3) affecting task reminder system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in SourceCodester Task Reminder System 1.0 and classified as critical. Affected by this issue is some unknown functionality of the file /classes/Master.php?f=delete_reminder. The manipulation of the argument id leads to sql injection. The attack may be launched remotely. The identifier of this vulnerability is VDB-243644.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 56%)
CISA exploited list	No
Weakness	CWE-89
Published	2023-10-27
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: oretnom23

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

Am I affected?

Timeline

2023-10-27 02:15 UTCPublished CVE record published
2026-06-17 06:49 UTCUpdated Record last modified

oretnom23 task reminder 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 task-reminder-system || rpm -q task-reminder-system || task-reminder-system --version

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

apt-cache madison task-reminder-system sudo apt install task-reminder-system=<VERSION_BEFORE_1.0> sudo apt-mark hold task-reminder-system

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

dnf --showduplicates list task-reminder-system sudo dnf downgrade task-reminder-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add task-reminder-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-2023-5813?

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

Is CVE-2023-5813 being exploited?

CVE-2023-5813 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-2023-5813 affect?

CVE-2023-5813 affects task reminder system. Severity is medium (CVSS 6.3). A vulnerability was found in SourceCodester Task Reminder System 1.0 and classified as critical. Affected by this issue is some unknown functionality of the file /classes/Master.php?f=delete_reminder. The manipulation of the argument id lea

How urgent is CVE-2023-5813?

Priority 33/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-0464 LOW 2.4 DOWNGRADE A vulnerability was found in SourceCodester Task Reminder System 1.0
CVE-2023-5814 MEDIUM 6.3 DOWNGRADE A vulnerability was found in SourceCodester Task Reminder System 1.0
CVE-2023-31705 MEDIUM 5.4 DOWNGRADE A Reflected Cross-site scripting (XSS) vulnerability in Sourcecodester Task Reminder System 1.0 allows an auth
CVE-2023-2219 LOW 3.5 DOWNGRADE A vulnerability was found in SourceCodester Task Reminder System 1.0 and classified as problematic
CVE-2023-2218 MEDIUM 6.3 DOWNGRADE A vulnerability has been found in SourceCodester Task Reminder System 1.0 and classified as critical

References

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