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Description

FreeSMS 2.1.2 contains a boolean-based blind SQL injection vulnerability in the password parameter that allows unauthenticated attackers to bypass authentication by injecting SQL code through the login endpoint. Attackers can exploit the vulnerable password parameter in requests to /pages/crc_handler.php?method=login to authenticate as any known user and subsequently modify their password via the profile update function.

PUBLISHED Reserved 2026-03-04 | Published 2026-03-04 | Updated 2026-03-05 | Assigner VulnCheck




HIGH: 8.8CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
HIGH: 8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Problem types

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Product status

2.1.2
affected

Credits

Yilmaz Degirmenci finder

References

www.exploit-db.com/exploits/46658 (ExploitDB-46658) exploit

www.vulncheck.com/...authentication-bypass-via-sql-injection (VulnCheck Advisory: FreeSMS 2.1.2 Authentication Bypass via SQL Injection) third-party-advisory

cve.org (CVE-2019-25506)

nvd.nist.gov (CVE-2019-25506)

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