HOMEVULNERABILITIESCVE-2017-20126
CRITICAL

CVE-2017-20126

CWE-89Published: July 13, 2022· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

A vulnerability was found in KB Affiliate Referral Script 1.0. It has been classified as critical. This affects an unknown part of the file /index.php. The manipulation of the argument username/password with the input 'or''=' leads to sql injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

NVD Source

Risk Analysis

KB Affiliate Referral Script 1.0 is affected by a critical SQL injection vulnerability in index.php. Remote attackers can manipulate database queries through the username or password fields.

A proof-of-concept exploit is publicly available, though the vulnerability is not in the KEV catalog. It is remotely exploitable with low attack complexity.

Recommended Action

Apply security updates or refactor the code to use prepared statements for all database interactions.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2017-20126 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-89): SQL injection vulnerabilities allow attackers to manipulate database queries, potentially exposing or modifying sensitive data.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

kb affiliate referral script
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (4)

https://vuldb.com/?id.96621Third Party Advisory
https://www.exploit-db.com/exploits/41166/Third Party Advisory · VDB Entry
https://vuldb.com/?id.96621Third Party Advisory
https://www.exploit-db.com/exploits/41166/Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2017-20126
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-89
CISA KEVNo
Affected1 vendor(s)
PublishedJul 13, 2022

Related CVEs (CWE-89)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2017-20126 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.