CVE-2021-45252
CVSS v3
9.8
CRITICAL
EPSS Score
1.2 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2021-12-21
Frequently asked questions
What is CVE-2021-45252?
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.
Is CVE-2021-45252 actively exploited?
Active exploitation of CVE-2021-45252 has not been confirmed. Its EPSS score was 1.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-45252?
CVE-2021-45252 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-45252 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.
No credit card required · 500 free checks/month · Free API key
Other 2021 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).