What is CVE-2021-24861?

CVE-2021-24861 is a high-severity vulnerability in Quotes Collection Project, classified under SQL Injection. CVSS score: 7.2/10. Published 2021-12-13.

How severe is CVE-2021-24861?

High severity. CVSS v3 base score is 7.2 out of 10.

Is CVE-2021-24861 known to be exploited?

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

SQL Injection in Quotes Collection Project

CVE-2021-24861

The Quotes Collection WordPress plugin through 2.5.2 does not validate and escape the bulkcheck parameter before using it in a SQL statement, leading to a SQL injection

Vulnerability class: SQL Injection

Published 2021-12-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (68.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Quotes Collection Project
Quotes Collection — versions 2.5.2

Weakness classification (CWE)

CWE-89 — SQL Injection

Public proof-of-concept exploits

20142995/nuclei-templates

References

wpscan.com/vulnerability/9a50d5d0-7a50-47d1-a8f9-e0eb217919d9 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-24861?: CVE-2021-24861 is a high-severity vulnerability in Quotes Collection Project, classified under SQL Injection. CVSS score: 7.2/10. Published 2021-12-13.
How severe is CVE-2021-24861?: High severity. CVSS v3 base score is 7.2 out of 10.
Is CVE-2021-24861 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.