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CVE Record

CVE-2019-25506: FreeSMS 2.1.2 Authentication Bypass via SQL Injection

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.

HighCVSS 8.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

FreeSMS 2.1.2 has an authentication bypass caused by SQL injection in the login flow. An unauthenticated attacker may log in as a known user and then change that user’s password. This creates account takeover risk where FreeSMS is exposed to untrusted networks.

Executive priority

Prioritize if FreeSMS is exposed externally or supports sensitive operations. The issue allows unauthenticated account takeover, but evidence of active exploitation is not provided. Treat remediation or isolation as high priority for exposed systems.

Technical view

CVE-2019-25506 is a CWE-89 boolean-based blind SQL injection in the password parameter of FreeSMS 2.1.2 login handling. The reported endpoint is /pages/crc_handler.php?method=login. Sources state exploitation can bypass authentication as a known user and enable password modification through the profile update function.

Likely exposure

Exposure is likely limited to organizations running FreeSMS 2.1.2, especially if the application is internet-facing or reachable by untrusted users. No other affected versions are identified in the provided sources.

Exploitation context

A public ExploitDB entry and a VulnCheck advisory exist. The source bundle does not show CISA KEV listing or cited evidence of active exploitation in the wild.

Researcher notes

The record identifies FreeSMS 2.1.2 only. CVSS 4.0 score is 8.8 with network attack vector, low complexity, no privileges, and no user interaction. Public exploit material exists, but this assessment does not reproduce exploit steps.

Mitigation direction

  • Identify any FreeSMS 2.1.2 deployments and determine network exposure.
  • Check vendor or project guidance for a fixed release or official mitigation.
  • Restrict FreeSMS access to trusted networks or VPN until remediated.
  • Review authentication and profile-update controls for suspicious account changes.
  • Consider decommissioning the application if no maintained fix is available.

Validation and detection

  • Confirm whether FreeSMS version 2.1.2 is installed.
  • Verify whether the login endpoint is reachable from untrusted networks.
  • Review application logs for unusual successful logins or password changes.
  • Perform safe code review for unsanitized password parameter SQL handling.
  • Confirm remediation by validating parameterized queries or vendor-fixed code.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-89: Database access and collection lookup

Injection into data stores can inform collection, data access, and exfiltration detection reviews. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
description · low confidence lookup

Database behavior lookup

The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2019-25506 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.8 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.8CVSS 4.0HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:NPrimary CVE score

Vulnerability scoring details

Base CVSS 4.0 score

8.8High
CVSS 4.0 vector shape for CVE-2019-25506Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
FreesmsFreeSMS2.1.2Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-89 · source CWE mapping

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

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.