CVE-2021-45252

Name: CVE-2021-45252
Creator: NVD / NIST
Published: 2021-12-21T12:15:07.457+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.24%

Last modified Jun 17, 2026

CVE-2021-45252 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Multiple SQL injection vulnerabilities are found on Simple Forum-Discussion System 1.0 For example on three applications which are manage_topic.php, manage_user.php, and ajax.php. The attacker can be retrieving all information from the database of this system by using this vulnerability.. EPSS estimates a 1.24% chance of exploitation in the next 30 days.

Description

Multiple SQL injection vulnerabilities are found on Simple Forum-Discussion System 1.0 For example on three applications which are manage_topic.php, manage_user.php, and ajax.php. The attacker can be retrieving all information from the database of this system by using this vulnerability.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.24%

65.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Oretnom23	Simple Forum\/Discussion System	1.0

References

https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/oretnom23/Forum-Discussion-System-1.0Exploit, Third Party Advisory
https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/oretnom23/Forum-Discussion-System-1.0Exploit, Third Party Advisory

Timeline

Published: Dec 21, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-45252?

How severe is CVE-2021-45252?

CVE-2021-45252 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.24% probability of exploitation in the next 30 days.

How do I fix CVE-2021-45252?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-45252?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST