VulnerabilityPublished 25 Feb 2026

CVE-2026-3153: itsourcecode Document Management System · SQL Injection

Affects itsourcecode Document Management SystemSource CVE Database V5

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Public exploit available · CVSS 6.9 Medium.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 4.0 base score

6.9Medium

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

EPSS: 0.4% chance of exploitation in 30 days – higher than 39% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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: None
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: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
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 25 Feb 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 29 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
itsourcecodeDocument Management System	Affected =1.0	Fixed in–

AI-suggested

To mitigate CVE-2026-3153, organizations should immediately implement input validation and sanitization on the Username parameter in /register.php to prevent SQL injection. Employing parameterized queries or prepared statements is critical to ensure that user input cannot alter SQL command structure. If a patch or updated version from itsourcecode becomes available, prioritize applying it promptly. In the absence of a patch, consider deploying web application firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting the vulnerable endpoint. Regularly monitor logs for suspicious activity related to /register.php and the Username parameter. Additionally, conduct security assessments and code reviews of the application to identify and remediate other potential injection points. Restrict database user privileges to the minimum necessary to limit the impact of any successful injection.

Description

A vulnerability has been found in itsourcecode Document Management System 1.0. Impacted is an unknown function of the file /register.php. Such manipulation of the argument Username leads to sql injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Impact

The impact of CVE-2026-3153 on organizations using the itsourcecode Document Management System 1.0 can be significant. Successful exploitation could lead to unauthorized disclosure of sensitive documents or user data stored within the system, undermining confidentiality. Attackers may also alter or delete records, affecting data integrity and potentially disrupting business operations. Availability could be impacted if attackers execute SQL commands that degrade database performance or cause crashes. Given the remote and unauthenticated nature of the vulnerability, attackers can exploit it at scale, increasing the risk of widespread compromise in environments where this software is deployed. Organizations handling sensitive or regulated information are particularly at risk, as data breaches could lead to compliance violations, reputational damage, and financial losses.

Summary

CVE-2026-3153 is a medium-severity SQL injection vulnerability identified in the itsourcecode Document Management System version 1.0. The flaw exists in the /register.php file, where the Username parameter is improperly sanitized, allowing an attacker to inject malicious SQL code remotely without requiring authentication or user interaction. This injection can manipulate backend SQL queries, potentially enabling unauthorized access to sensitive data, modification of database contents, or disruption of service. The vulnerability affects confidentiality, integrity, and availability to a limited extent, as indicated by the CVSS vector (VC:L, VI:L, VA:L). The attack complexity is low, and no privileges or user interaction are needed, making exploitation feasible for remote attackers. Although no known exploits are currently active in the wild, the public disclosure of the vulnerability details increases the risk of exploitation. The vulnerability is specific to version 1.0 of the product, and no patches or updates have been linked yet, emphasizing the need for immediate mitigation steps by users of this software.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 25 Feb 2026, 06:11 UTC

Technical details

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