CVE-2024-22404VulnerabilityPublished 18 Jan 2024Updated 2 Jun 2025

CVE-2024-22404: nextcloud security-advisories · Improper Preservation of Permissions

Affects nextcloud security-advisoriesSource CVE Database V5

Not known to be exploited · CVSS 4.1 Medium · fixed in 1.5.0 : update nextcloud security-advisories when convenient.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

4.1Medium

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

EPSS: 0.5% chance of exploitation in 30 days – higher than 43% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 1.5.0, 1.4.1, 1.2.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, 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: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
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 impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Jan 2024
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

Upgrade nextcloud/files_zip to 1.5.0, 1.4.1 or 1.2.1.

Affected software

Product	Affected	Fixed in
GitHubnextcloud/files_zip`pkg:github/nextcloud/files_zip`Other threats	Affected <1.2.1 <1.4.1 <1.5.0	Fixed in 1.2.1 1.4.1 1.5.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

1. Immediate upgrade of the Nextcloud Files ZIP app to versions 1.2.1, 1.4.1, or 1.5.0 where the vulnerability is patched. 2. If upgrading is not immediately possible, disable the Files ZIP app entirely to prevent exploitation. 3. Review and audit user permissions within Nextcloud to ensure that only necessary users have access to sensitive files and folders. 4. Implement monitoring and alerting for unusual file download or archiving activities that could indicate exploitation attempts. 5. Educate users about the risks of using file archiving features and encourage reporting of suspicious behavior. 6. Regularly update Nextcloud and all associated apps to the latest versions to benefit from security fixes. 7. Consider deploying additional data loss prevention (DLP) controls and encryption for sensitive files stored in Nextcloud to mitigate potential data exposure. 8. Conduct periodic security assessments and penetration testing focused on access control enforcement in Nextcloud environments.

Description

Nextcloud files Zip app is a tool to create zip archives from one or multiple files from within Nextcloud. In affected versions users can download "view-only" files by zipping the complete folder. It is recommended that the Files ZIP app is upgraded to 1.2.1, 1.4.1, or 1.5.0. Users unable to upgrade should disable the file zip app.

Impact

For European organizations using Nextcloud as a file sharing and collaboration platform, this vulnerability could lead to unauthorized disclosure of sensitive or confidential files. Since the flaw allows users with limited permissions to download files they should only view, it undermines data confidentiality and trust in access controls. This can be particularly damaging for sectors with strict data protection requirements such as finance, healthcare, legal, and government institutions across Europe. The breach of confidentiality could result in regulatory non-compliance with GDPR, potential data leaks, and reputational damage. Although the vulnerability does not affect data integrity or availability, the unauthorized data access risk is significant in environments where sensitive personal or business data is stored. The medium CVSS score suggests moderate risk, but the impact could be higher depending on the sensitivity of the data exposed. Organizations relying heavily on Nextcloud for secure collaboration must prioritize patching or disabling the vulnerable app to maintain compliance and protect sensitive information.

CWE-281Improper Preservation of Permissions (opens in a new tab)
Base weaknessOWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended.
OWASP Cheat Sheets
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V8.3.8 (opens in a new tab)
V13.4.2 (opens in a new tab)
V7.2.2 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 3 Jul 2025, 16:09 UTC

WeaknessesCWE-281

Technical details

References

Community reviews

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