What is CVE-2023-22959?

CVE-2023-22959 is a high-severity vulnerability in Webchess Project, classified under SQL Injection. CVSS score: 8.8/10. Published 2023-01-11.

How severe is CVE-2023-22959?

High severity. CVSS v3 base score is 8.8 out of 10.

SQL Injection in Webchess Project

CVE-2023-22959

WebChess through 0.9.0 and 1.0.0.rc2 allows SQL injection: mainmenu.php, chess.php, and opponentspassword.php (txtFirstName, txtLastName).

Vulnerability class: SQL Injection

Published 2023-01-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.137 (96.4th percentile), scored 2026-10-02.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.137 · newest: 0.137 · change: 0.000

Affected products

Webchess Project — versions 1.0.0

Weakness classification (CWE)

CWE-89 — SQL Injection

References

github.com/chenan224/webchess_sqli_poc (Exploit, Third Party Advisory)
sourceforge.net/p/webchess/bugs/84/ (Third Party Advisory)

Frequently asked questions

What is CVE-2023-22959?: CVE-2023-22959 is a high-severity vulnerability in Webchess Project, classified under SQL Injection. CVSS score: 8.8/10. Published 2023-01-11.
How severe is CVE-2023-22959?: High severity. CVSS v3 base score is 8.8 out of 10.