HOMEVULNERABILITIESCVE-2023-5836
CRITICAL

CVE-2023-5836

CWE-89Published: October 28, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

A vulnerability was found in SourceCodester Task Reminder System 1.0. It has been rated as critical. Affected by this issue is some unknown functionality of the file classes/Users.php?f=delete. The manipulation of the argument id leads to sql injection. The attack may be launched remotely. The identifier of this vulnerability is VDB-243800.

NVD Source

Risk Analysis

The Task Reminder System contains a SQL injection vulnerability in its user management functionality, allowing remote attackers to manipulate database queries. It is a critical risk with a 9.8 CVSS score.

No public exploit is known, and it is not in the KEV catalog. The vulnerability is remotely exploitable with low complexity.

Recommended Action

Apply any available patches from the vendor. Ensure that all database inputs are properly parameterized to prevent SQL injection.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-5836 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-89): SQL injection vulnerabilities allow attackers to manipulate database queries, potentially exposing or modifying sensitive data.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

task reminder system
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (4)

https://vuldb.com/?ctiid.243800Permissions Required · Third Party Advisory
https://vuldb.com/?id.243800Third Party Advisory
https://vuldb.com/?ctiid.243800Permissions Required · Third Party Advisory
https://vuldb.com/?id.243800Third Party Advisory

Quick Facts

CVE IDCVE-2023-5836
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-89
CISA KEVNo
Affected1 vendor(s)
PublishedOct 28, 2023

Related CVEs (CWE-89)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2023-5836 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.