CVE-2025-13785VulnerabilityPublished 30 Nov 2025Updated 2 Dec 2025

CVE-2025-13785: yungifez Skuul School Management System · Information Disclosure

Affects yungifez Skuul School Management SystemSource CVE Database V5

Not known to be exploited · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 08:30 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 30% 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:N/VA:N/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: None
Vulnerable system availability: None
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: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within 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 30 Nov 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 26 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.
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
yungifez Skuul School Management System	Affected =2.6.0 =2.6.1 =2.6.2 =2.6.3 =2.6.4 =2.6.5	Fixed in–

AI-suggested

1. Immediately restrict external network access to the /user/profile endpoint of the Skuul School Management System using firewalls or web application firewalls (WAFs) to limit exposure. 2. Implement strict access controls and authentication mechanisms around the Image Handler component to ensure only authorized users can access profile data. 3. Monitor logs and network traffic for unusual or suspicious requests targeting the /user/profile endpoint to detect potential exploitation attempts early. 4. Conduct internal audits of the data exposed via this endpoint to understand the sensitivity and scope of information at risk. 5. Engage with the vendor or community to obtain patches or updates as soon as they become available and apply them promptly. 6. Consider isolating or segmenting the affected system within the network to reduce the blast radius of any potential exploitation. 7. Educate staff about the risk of phishing or social engineering attacks that could leverage leaked information. 8. Review and enhance data protection policies to ensure compliance with GDPR and other relevant regulations in case of data leakage. 9. If possible, deploy application-layer intrusion detection or prevention systems to block malicious requests targeting this vulnerability.

Description

A security vulnerability has been detected in yungifez Skuul School Management System up to 2.6.5. This issue affects some unknown processing of the file /user/profile of the component Image Handler. Such manipulation leads to information disclosure. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Impact

For European organizations, especially educational institutions using the yungifez Skuul School Management System, this vulnerability poses a risk of unauthorized disclosure of sensitive personal data such as student profiles, staff information, or other confidential records. Such data leakage can lead to privacy violations under GDPR, reputational damage, and potential legal consequences. Although the vulnerability does not allow system takeover or data modification, the exposure of sensitive information can facilitate phishing, identity theft, or targeted attacks against the institution. The medium severity rating reflects the moderate impact on confidentiality and the ease of remote exploitation without user interaction. Given the critical nature of educational data and the regulatory environment in Europe, even moderate information disclosure vulnerabilities warrant prompt attention. The lack of vendor response and patches increases the risk window, requiring organizations to implement compensating controls to protect data confidentiality.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 7 Dec 2025, 08:28 UTC

Technical details

References

Community reviews

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