VulnerabilityPublished 9 Mar 2026Updated 10 Mar 2026

CVE-2026-3806: SourceCodester Resort Reservation System · SQL Injection

Affects SourceCodester Resort Reservation 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 9 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
SourceCodesterResort Reservation System	Affected =1.0	Fixed in–
janobeResort Reservation System	Affected =1.0	Fixed in–

AI-suggested

Organizations should immediately audit their deployment of SourceCodester/janobe Resort Reservation System version 1.0 and restrict external access to the /room_rates.php endpoint if possible. Implement input validation and sanitization on the 'q' parameter to reject or properly escape malicious SQL syntax. Refactor the application code to use parameterized queries or prepared statements to prevent injection attacks. Monitor database logs and web application logs for unusual query patterns or repeated failed attempts targeting the 'q' parameter. Employ web application firewalls (WAFs) with rules designed to detect and block SQL injection payloads targeting this endpoint. If available, apply vendor patches or updates addressing this vulnerability promptly. Additionally, conduct regular security assessments and penetration testing focused on injection flaws. Educate developers on secure coding practices to prevent similar vulnerabilities in future releases. Backup critical data regularly to enable recovery in case of data corruption or loss.

Description

CVE-2026-3806 is a medium-severity SQL injection vulnerability affecting SourceCodester/janobe Resort Reservation System version 1.0. The flaw exists in the /room_rates.php file where the 'q' parameter is improperly sanitized, allowing remote attackers to inject malicious SQL commands. Exploitation does not require user interaction or authentication, and the vulnerability can lead to partial confidentiality, integrity, and availability impacts. Although no known exploits are currently in the wild, proof-of-concept code has been publicly released, increasing the risk of attacks. Organizations using this system should prioritize patching or implementing mitigations to prevent unauthorized data access or manipulation. The threat primarily affects entities in countries where this software is deployed, especially in tourism-dependent regions. Due to the moderate CVSS score of 5.3, the vulnerability poses a significant but not critical risk.

Impact

The SQL injection vulnerability could allow attackers to access or manipulate sensitive reservation system data, including customer information, booking details, and pricing. This can lead to data breaches compromising confidentiality, unauthorized modification of reservation records impacting data integrity, and potential service disruptions affecting availability. Attackers might also escalate their access within the system or pivot to other internal resources if the database contains broader network credentials or sensitive operational data. For organizations relying on this system, such compromises could result in financial loss, reputational damage, regulatory penalties, and operational downtime. The medium severity reflects limited but meaningful impacts, especially for businesses in the hospitality sector where customer trust and data protection are critical. Since exploitation requires no authentication and can be performed remotely, the attack surface is broad, increasing risk exposure for unpatched systems.

Summary

CVE-2026-3806 identifies a SQL injection vulnerability in the SourceCodester/janobe Resort Reservation System version 1.0, specifically within the /room_rates.php script. The vulnerability arises from improper sanitization of the 'q' parameter, which is used in SQL queries without adequate validation or parameterization. This allows an attacker to craft malicious input that alters the intended SQL command, potentially enabling unauthorized access to or manipulation of the backend database. The vulnerability can be exploited remotely without requiring authentication or user interaction, increasing its accessibility to attackers. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:L), no user interaction (UI:N), and low impacts on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). Although the impact is limited, attackers could leverage this flaw to extract sensitive reservation data, modify booking information, or disrupt service availability. No official patches have been linked yet, and while no active exploits are reported in the wild, public proof-of-concept code exists, raising the likelihood of exploitation attempts. The vulnerability is confined to version 1.0 of the product, which is a niche application used primarily in resort and hospitality management contexts.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 16 Mar 2026, 19:10 UTC

Technical details

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