VulnerabilityPublished 8 Mar 2026Updated 11 Mar 2026

CVE-2026-3755: SourceCodester Sales and Inventory System · SQL Injection

Affects SourceCodester Sales and Inventory SystemSource CVE Database V5

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Public exploit available · CVSS 5.3 Medium.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score

5.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Base metrics

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: None
Vulnerable system confidentiality: Low
Vulnerable system integrity: Low
Vulnerable system availability: Low
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Threat metrics

Exploit Maturity: POC

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the Vulnerable System.
Vulnerable system integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact to the Vulnerable System.
Vulnerable system availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the Vulnerable System are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.
Exploit Maturity: POC: Based on threat intelligence sources each of the following must apply: · Proof-of-concept is publicly available · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 8 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
SourceCodesterSales and Inventory System	Affected =1.0	Fixed in–

AI-suggested

To mitigate CVE-2026-3755, organizations should first verify if they are running SourceCodester Sales and Inventory System version 1.0 and assess exposure of the /check_customer_details.php endpoint. Immediate steps include implementing strict input validation and sanitization on the stock_name1 parameter to block malicious SQL payloads. Refactoring the code to use parameterized queries or prepared statements is critical to prevent SQL injection. If source code modification is not feasible, deploying a web application firewall (WAF) with rules targeting SQL injection patterns can provide a temporary defense. Restricting access to the vulnerable endpoint through network segmentation, IP whitelisting, or VPN access reduces exposure. Monitoring logs for suspicious POST requests targeting stock_name1 can help detect exploitation attempts. Organizations should also engage with the vendor or community to obtain patches or updates and plan timely application of fixes once available. Regular security assessments and penetration testing can help identify similar vulnerabilities proactively.

Description

A vulnerability was determined in SourceCodester Sales and Inventory System 1.0. This impacts an unknown function of the file /check_customer_details.php of the component POST Handler. Executing a manipulation of the argument stock_name1 can lead to sql injection. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

Impact

The impact of CVE-2026-3755 can be significant for organizations relying on SourceCodester Sales and Inventory System 1.0. Successful exploitation can lead to unauthorized disclosure of sensitive customer and inventory data, modification or deletion of records, and potential disruption of sales and inventory operations. This can result in financial losses, reputational damage, and regulatory compliance issues, especially if customer data is exposed. The vulnerability's remote exploitability without user interaction increases the risk of automated attacks and widespread scanning. Organizations with internet-facing deployments of the affected system are at higher risk. Although the CVSS score is medium, the actual impact depends on the sensitivity of the data stored and the criticality of the system within the business processes. Attackers could leverage this vulnerability as a foothold for further network compromise or data exfiltration. The absence of known exploits in the wild currently limits immediate widespread impact but does not eliminate future risk.

Summary

CVE-2026-3755 identifies a SQL injection vulnerability in SourceCodester Sales and Inventory System version 1.0, specifically within the /check_customer_details.php script. The vulnerability arises from improper sanitization or validation of the POST parameter stock_name1, which is used in SQL queries without adequate safeguards. An attacker can remotely send crafted requests to manipulate the SQL query logic, potentially extracting sensitive data, modifying database contents, or causing denial of service. The vulnerability requires no user interaction and can be exploited with low privileges, making it accessible to a wide range of attackers. The CVSS 4.0 score of 5.3 reflects a medium severity, considering the ease of exploitation and the limited scope of impact. No patches or fixes are currently linked, and no known exploits have been observed in the wild, but public disclosure increases the risk of exploitation attempts. The vulnerability affects only version 1.0 of the product, which is typically used by small to medium businesses for sales and inventory management. The lack of authentication requirement for exploitation suggests that exposed instances accessible over the internet are particularly vulnerable. The vulnerability highlights the importance of secure coding practices, especially input validation and use of parameterized queries to prevent SQL injection attacks.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 16 Mar 2026, 09:10 UTC

Technical details

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