How severe is CVE-2023-22959?

CVE-2023-22959 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-22959 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-22959?

CVE-2023-22959 primarily affects Webchess Project Webchess. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-22959?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-22959 published?

CVE-2023-22959 was published on 2023-01-11 and last updated on 2026-06-17.

CVE-2023-22959

CVE-2023-22959 is a high-severity vulnerability in Webchess Project Webchess with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-89.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Webchess Project Webchess
Published: 2023-01-11
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is 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).
How severe is CVE-2023-22959?: CVE-2023-22959 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-22959 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-22959?: CVE-2023-22959 primarily affects Webchess Project Webchess. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-22959?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-22959 published?: CVE-2023-22959 was published on 2023-01-11 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:webchess_project:webchess:*:*:*:*:*:*:*:*
cpe:2.3:a:webchess_project:webchess:1.0.0:rc2:*:*:*:*:*:*

More vulnerabilities in Webchess Project Webchess

CVE-2023-39851 — Critical (CVSS 9.8): webchess v1.0 was discovered to contain a SQL injection vulnerability via the $playerID parameter at mainmenu.php.…
CVE-2019-20896 — Critical (CVSS 9.8): WebChess 1.0 allows SQL injection via the messageFrom, gameID, opponent, messageID, or to parameter.

All CVEs affecting Webchess Project Webchess →

Other CWE-89 (SQL Injection) vulnerabilities

CVE-2026-54350 — Critical (CVSS 10.0): Budibase is an open-source low-code platform. Prior to 3.39.12, an unauthenticated visitor of any published Budibase…
CVE-2026-8054 — Critical (CVSS 10.0): Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in the Publish Audit API endpoints…
CVE-2026-42287 — Critical (CVSS 10.0): Emlog is an open source website building system. Prior to version 2.6.11, direct SQL injection in article creation and…
CVE-2026-3325 — Critical (CVSS 10.0): SQL injection (SQLi) in MegaCMS v12.0.0, specifically in the “id_territorio” parameter of the…
CVE-2025-10878 — Critical (CVSS 10.0): A SQL injection vulnerability exists in the login functionality of Fikir Odalari AdminPando 1.0.1 before 2026-01-26.…
CVE-2025-57792 — Critical (CVSS 10.0): Explorance Blue versions prior to 8.14.9 contain a SQL injection vulnerability caused by insufficient validation of…

Browse all CWE-89 (SQL Injection) vulnerabilities →