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01 Record

CVE-2023-39851

webchess v1.0 was discovered to contain a SQL injection vulnerability via the $playerID parameter at mainmenu.php. NOTE: this is disputed by a third party who indicates that the playerID is a session

CriticalPUBLISHEDCNA: mitre
CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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02 Description

webchess v1.0 was discovered to contain a SQL injection vulnerability via the $playerID parameter at mainmenu.php. NOTE: this is disputed by a third party who indicates that the playerID is a session

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.84% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 57.6% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-08-15 00:00Z3 YR AGO
Last updated
2025-07-03 14:12Z1 YR AGO
Reserved
2023-08-07
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Critical (CVSS 9.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')Base
Data version
5.1
Document digest
1bcb41e09d54a60d88bedf20ea870418322bd9382dde9a671df58f902181f40a

05 Affected products

VendorProductVersionsPlatforms
webchess_projectwebchessNot specified—

06 References