CVE-2025-11556VulnerabilityPublished 9 Oct 2025

CVE-2025-11556: code-projects Simple Leave Manager · SQL Injection

Affects code-projects Simple Leave ManagerSource CVE Database V5

Not known to be exploited · CVSS 6.9 Medium.

Data as of 25 Oct 2026, 19:02 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 40% 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 9 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
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), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

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.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC 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
code-projects Simple Leave Manager	Affected =1.0	Fixed in–

AI-suggested

European organizations using Simple Leave Manager 1.0 should immediately assess exposure of the /user.php endpoint and restrict access via network controls such as firewalls or VPNs. Implement strict input validation and sanitization on all user-supplied parameters, especially the 'table' argument, to prevent injection attacks. Where possible, refactor database queries to use parameterized statements or prepared queries to eliminate direct injection vectors. Limit database user permissions to the minimum necessary to reduce potential damage from exploitation. Monitor logs for suspicious SQL query patterns or unusual access attempts targeting the vulnerable endpoint. If vendor patches or updates become available, prioritize their deployment. Additionally, conduct security awareness training for administrators managing the application to recognize and respond to potential exploitation attempts. Consider isolating the application within a segmented network zone to limit lateral movement in case of compromise.

Description

CVE-2025-11556 is a medium severity SQL Injection vulnerability found in code-projects Simple Leave Manager version 1.0, specifically in the /user.php file. The flaw allows remote attackers to manipulate the 'table' argument to execute arbitrary SQL commands without authentication or user interaction. This can lead to partial compromise of confidentiality, integrity, and availability of the affected system's data. Although no known exploits are currently observed in the wild, a public exploit has been published, increasing the risk of exploitation. The vulnerability affects only version 1.0 of Simple Leave Manager, a niche HR management tool. European organizations using this product should prioritize patching or mitigating this issue to prevent unauthorized data access or modification. Countries with higher adoption of this software or with strategic HR data targets are more likely to be impacted.

Impact

For European organizations, this vulnerability poses a risk to the confidentiality and integrity of employee leave and HR data managed by Simple Leave Manager 1.0. Unauthorized access or modification of such data could lead to privacy violations under GDPR, reputational damage, and operational disruptions in HR processes. Although the impact on availability is limited, attackers could potentially disrupt leave management workflows, affecting workforce planning. The remote and unauthenticated nature of the exploit increases the threat level, especially for organizations exposing the application to external networks or lacking proper network segmentation. Given the specialized nature of the software, the overall scope is limited to organizations using this product, but those affected may face compliance and legal risks due to data breaches. The absence of known active exploitation reduces immediate risk but the availability of a public exploit necessitates proactive mitigation.

Summary

CVE-2025-11556 identifies a SQL Injection vulnerability in the Simple Leave Manager 1.0 application developed by code-projects. The vulnerability resides in the /user.php file where the 'table' argument is improperly sanitized, allowing an attacker to inject malicious SQL code remotely without requiring authentication or user interaction. This injection flaw can be exploited to manipulate backend database queries, potentially exposing sensitive employee leave data, modifying records, or disrupting application availability. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), and no user interaction (UI:N), with limited impact on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). Although no active exploitation in the wild is reported, a public exploit exists, increasing the risk of attacks. The vulnerability affects only version 1.0 of Simple Leave Manager, which is a specialized HR management tool used primarily for leave tracking. The lack of patches or official remediation guidance increases the urgency for organizations to implement defensive measures. The vulnerability's exploitation could lead to unauthorized data disclosure, data tampering, or denial of service conditions, impacting organizational operations and compliance with data protection regulations.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 17 Oct 2025, 05:23 UTC

Technical details

References

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