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CVE-2023-22469— Nextcloud Deck card vulnerable to data leak to unauthorized users via reference preview cache

Quick assessment

Affected
nextcloud security-advisories
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nextcloud Deck 1.8.2之前版本存在安全漏洞，该漏洞源于在获取用户无权访问的 Deck 卡的参考预览时，未经授权的用户最终可能会获得用户的缓存数据。

CVSS 5.8 · Medium EPSS 0.69% · P51

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2023-22469

Vulnerability Information
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Vulnerability Title
Nextcloud Deck card vulnerable to data leak to unauthorized users via reference preview cache
Source: CVE Program / CVE List V5
Vulnerability Description
Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. When getting the reference preview for Deck cards the user has no access to, unauthorized user could eventually get the cached data of a user that has access. There are currently no known workarounds. It is recommended that the Nextcloud app Deck is upgraded to 1.8.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
敏感信息的不安全存储
Source: CVE Program / CVE List V5
Vulnerability Title
Nextcloud 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nextcloud Deck 1.8.2之前版本存在安全漏洞，该漏洞源于在获取用户无权访问的 Deck 卡的参考预览时，未经授权的用户最终可能会获得用户的缓存数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
nextcloud security-advisories < 1.8.2 -

II. Public POCs for CVE-2023-22469

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III. Intelligence Information for CVE-2023-22469

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Patches & Fixes for CVE-2023-22469 (1)

Vendor Advisories for CVE-2023-22469 (1)

IV. Related Vulnerabilities

Same product: security-advisories
Same vendor: nextcloud
Same weakness: CWE-922

V. Comments for CVE-2023-22469

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