CVE-2026-2183VulnerabilityPublished 8 Feb 2026Updated 23 Feb 2026

CVE-2026-2183: Great Developers Certificate Generation System · Unrestricted Upload

Affects Great Developers Certificate Generation SystemSource CVE Database V5

Not known to be exploited · CVSS 5.3 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score

5.3Medium

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 16% 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:X

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

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.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 8 Feb 2026
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
Great DevelopersCertificate Generation System	Affected =97171bb0e5e22e52eacf4e4fa81773e5f3cffb73	Fixed in–

AI-suggested

Since no official patches or updates are available due to the inactive code repository, organizations should implement strict network-level controls to restrict access to the certificate generation system, limiting it to trusted internal users and networks. Employ web application firewalls (WAFs) with rules to detect and block suspicious file upload attempts, especially targeting the /restructured/csv.php endpoint. Conduct thorough input validation and implement server-side checks to restrict allowed file types, sizes, and upload paths, if possible by modifying the application code. Monitor logs for unusual upload activity and conduct regular security audits of the system. Consider isolating the certificate generation system in a segmented network zone with minimal privileges and no direct internet exposure. If feasible, migrate to a supported and actively maintained certificate generation solution to reduce long-term risk.

Description

A security vulnerability has been detected in Great Developers Certificate Generation System up to 97171bb0e5e22e52eacf4e4fa81773e5f3cffb73. This affects an unknown part of the file /restructured/csv.php. The manipulation leads to unrestricted upload. Remote exploitation of the attack is possible. This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. The code repository of the project has not been active for many years.

Impact

The unrestricted upload vulnerability can lead to unauthorized file uploads, which may allow attackers to execute arbitrary code on the server hosting the certificate generation system. This could compromise the confidentiality and integrity of certificate data, disrupt certificate issuance processes, and potentially allow attackers to impersonate trusted entities by issuing fraudulent certificates. The availability of the service could also be impacted if malicious files cause system instability or denial of service. Given the system's role in certificate generation, a compromise could have downstream effects on security infrastructure relying on these certificates. The inactive maintenance status of the software increases the risk of exploitation over time, as no patches or updates are forthcoming. Organizations worldwide using this system may face reputational damage, regulatory penalties, and operational disruptions if exploited.

Summary

CVE-2026-2183 identifies an unrestricted file upload vulnerability in the Great Developers Certificate Generation System, specifically within the /restructured/csv.php file. The vulnerability allows remote attackers to upload arbitrary files without authentication or user interaction, due to insufficient validation or restrictions on uploaded file types or paths. This could enable attackers to upload malicious scripts or executables, potentially leading to remote code execution, privilege escalation, or persistent backdoors. The product follows a rolling release model, but the code repository has been inactive for years, suggesting no active maintenance or patches are available. The CVSS 4.0 base score of 5.3 reflects medium severity, considering the vulnerability is remotely exploitable with low complexity and no privileges required, but the impact on confidentiality, integrity, and availability is limited to low. No known exploits have been reported, but the lack of recent updates increases risk over time. Organizations relying on this system for certificate generation should assess exposure and implement compensating controls to prevent exploitation.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 23 Feb 2026, 21:44 UTC

Technical details

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