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CVE-2024-52509

Nextcloud Mail app does not respect download permissions in shares

MEDIUM
5.7
CVSS Score
Published: November 15, 2024 at 05:37 PM UTC
Updated: June 17, 2026 at 08:07 AM UTC
1 product affected across 1 vendorMail

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Severity
MEDIUM5.7
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

Nextcloud Mail is the mail app for Nextcloud, a self-hosted productivity platform. The Nextcloud mail app incorrectly allowed attaching shared files without download permissions as attachments. This allowed users to send them the files to themselves and then downloading it from their mail clients. It is recommended that the Nextcloud Mail is upgraded to 2.2.10, 3.6.2 or 3.7.2.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Mail· Nextcloudnextcloud-app
95%
2.2.0 ≤ v < 2.2.103.6.0 ≤ v < 3.6.23.7.0 ≤ v < 3.7.2
Affected range stops below 2.2.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.6.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.7.2, so it looks safe — our inference, not a vendor statement

References (4)

x_refsource_MISCPatch
Source: [email protected]
https://github.com/nextcloud/mail/commit/8d44f1ce44684022aa4e62a3e0462fdadcde6c8b
x_refsource_MISCPatch
Source: [email protected]
https://github.com/nextcloud/mail/pull/9592
x_refsource_CONFIRMPatchVendor Advisory
Source: [email protected]
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-pwpp-fvcr-w862
x_refsource_MISCIssue Tracking
Source: [email protected]
https://hackerone.com/reports/1878255

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.7MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-284NVD-CWE-noinfo

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