What is CVE-2021-24827?

CVE-2021-24827 is a critical-severity vulnerability in Asgaros Forum, classified under SQL Injection. CVSS score: 9.8/10. Published 2021-11-08.

How severe is CVE-2021-24827?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-24827 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SQL Injection in Asgaros Forum

CVE-2021-24827

The Asgaros Forum WordPress plugin before 1.15.13 does not validate and escape user input when subscribing to a topic before using it in a SQL statement, leading to an unauthenticated SQL injection issue

Vulnerability class: SQL Injection

Published 2021-11-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.126 (96.1th percentile), scored 2026-09-28.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.133 · newest: 0.126 · change: -0.007

Affected products

Asgaros Forum
Asgaros Forum — versions 1.15.13

Weakness classification (CWE)

CWE-89 — SQL Injection

Public proof-of-concept exploits

References

wpscan.com/vulnerability/36cc5151-1d5e-4874-bcec-3b6326235db1 (Exploit, Third Party Advisory)
plugins.trac.wordpress.org/changeset/2611560/asgaros-forum (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-24827?: CVE-2021-24827 is a critical-severity vulnerability in Asgaros Forum, classified under SQL Injection. CVSS score: 9.8/10. Published 2021-11-08.
How severe is CVE-2021-24827?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-24827 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.