HOMEVULNERABILITIESCVE-2017-20128
CRITICAL

CVE-2017-20128

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

9.8
CVSS v3.1

Official Description

A vulnerability has been found in KB Messages PHP Script 1.0 and classified as critical. Affected by this vulnerability is an unknown functionality. The manipulation of the argument username/password with the input 'or''=' leads to sql injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

NVD Source

Risk Analysis

KB Messages PHP Script 1.0 is vulnerable to SQL injection via the username and password fields. This critical flaw allows remote attackers to bypass authentication or manipulate the database.

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

Upgrade to a secure version of the script or implement robust input sanitization for all authentication fields.

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-2017-20128 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 messages php 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.96619Permissions Required · Third Party Advisory
https://www.exploit-db.com/exploits/41168/Exploit · Third Party Advisory · VDB Entry
https://vuldb.com/?id.96619Permissions Required · Third Party Advisory
https://www.exploit-db.com/exploits/41168/Exploit · Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2017-20128
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-2017-20128 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.