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.
Fix
Public exploits 2
- Hunt-Benito/e-is-for-exploit-cve-2026-17543-php-pgsql-sql-injection-backslash-breakout PoC on GitHub
- pratham220/CVE-2026-17543-PHP-Exposure-Validator PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Patch, vendor advisory and mitigation references on NVD 1
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.1 · phpNVD modified 2026-10-23 22:10
Affected (CPE criteria) 1
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*