CVE-2026-17543: CWE-89 Improper neutralization of special elements used in an SQL command ('SQL injection') in PHP Group PHP
Improper escaping of backslashes in attacker-provided parameters would allow for trivial SQL injection in PHP versions from 8.2.* before 8.2.33, from 8.3.* before 8.3.33, from 8.4.* before 8.4.24, and from 8.5.* before 8.5.9.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-17543) arises from improper neutralization of special elements used in SQL commands (CWE-89) due to incorrect escaping of backslashes in user input parameters within PHP. It affects multiple PHP version branches prior to 8.2.33, 8.3.33, 8.4.24, and 8.5.9. The CVSS 4.0 base score is 8.1, indicating high severity with network attack vector, no privileges or user interaction required, but with high impact on confidentiality, integrity, and availability. No vendor advisory or patch links are provided, and the remediation level is unspecified.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to perform SQL injection attacks without authentication or user interaction, potentially leading to unauthorized data access, modification, or denial of service. The high CVSS score reflects significant risk to affected systems running vulnerable PHP versions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider applying workarounds such as input validation and parameterized queries in their applications to mitigate SQL injection risks.
CVE-2026-17543: CWE-89 Improper neutralization of special elements used in an SQL command ('SQL injection') in PHP Group PHP
Description
Improper escaping of backslashes in attacker-provided parameters would allow for trivial SQL injection in PHP versions from 8.2.* before 8.2.33, from 8.3.* before 8.3.33, from 8.4.* before 8.4.24, and from 8.5.* before 8.5.9.
CVSS v4.0
Score 8.1high
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-17543) arises from improper neutralization of special elements used in SQL commands (CWE-89) due to incorrect escaping of backslashes in user input parameters within PHP. It affects multiple PHP version branches prior to 8.2.33, 8.3.33, 8.4.24, and 8.5.9. The CVSS 4.0 base score is 8.1, indicating high severity with network attack vector, no privileges or user interaction required, but with high impact on confidentiality, integrity, and availability. No vendor advisory or patch links are provided, and the remediation level is unspecified.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to perform SQL injection attacks without authentication or user interaction, potentially leading to unauthorized data access, modification, or denial of service. The high CVSS score reflects significant risk to affected systems running vulnerable PHP versions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider applying workarounds such as input validation and parameterized queries in their applications to mitigate SQL injection risks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- php
- Date Reserved
- 2026-07-27T10:12:16.392Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a6b37829c2644c7f8001675
Added to database: 07/30/2026, 11:37:38 UTC
Last enriched: 07/30/2026, 11:52:12 UTC
Last updated: 07/30/2026, 12:39:47 UTC
Views: 6
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.