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CVE-2025-54591— FreshRSS: Unauthenticated users can view default user's information

Quick assessment

Affected
FreshRSS FreshRSS
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FreshRSS是FreshRSS开源的一个免费的、可自行托管的 RSS 聚合器。 FreshRSS 1.26.3及之前版本存在访问控制错误漏洞，该漏洞源于FreshRSS_Auth::hasAccess函数缺少访问检查，可能导致信息泄露。

CVSS 7.5 · High EPSS 0.43% · P35

Possible ATT&CK Techniques 1 AI

T1592.002 · Software
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I. Basic Information for CVE-2025-54591

Vulnerability Information
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Vulnerability Title
FreshRSS: Unauthenticated users can view default user's information
Source: CVE Program / CVE List V5
Vulnerability Description
FreshRSS is a free, self-hostable RSS aggregator. Versions 1.26.3 and below expose information about feeds and tags of default admin users, due to lack of access checking in the FreshRSS_Auth::hasAccess() function used by some of the tag/feed related endpoints. FreshRSS controllers usually have a defined firstAction() method with an override to make sure that every action requires access. If one doesn't, then every action has to check for access manually, and certain endpoints use neither the firstAction() method, or do they perform a manual access check. This issue is fixed in version 1.27.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
FreshRSS 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreshRSS是FreshRSS开源的一个免费的、可自行托管的 RSS 聚合器。 FreshRSS 1.26.3及之前版本存在访问控制错误漏洞，该漏洞源于FreshRSS_Auth::hasAccess函数缺少访问检查，可能导致信息泄露。
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
FreshRSS FreshRSS < 1.27.0 -

II. Public POCs for CVE-2025-54591

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9823 chars
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III. Intelligence Information for CVE-2025-54591

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Vendor Advisories for CVE-2025-54591 (1)

Same Patch Batch · FreshRSS · 2025-09-29 · 7 CVEs total

CVE-2025-54875 9.8 CRITICAL FreshRSS: Unauthorized creation of admin user when registration is enabled
CVE-2025-59948 6.7 MEDIUM FreshRSS is vulnerable to XSS due to lack of CSP on HTML query page
CVE-2025-59950 6.7 MEDIUM FreshRSS: Double clickjacking can lead to privilege escalation
CVE-2025-54592 FreshRSS has Incomplete Session Termination on Logout
CVE-2025-57769 FressRSS: Clickjacking can lead to XSS and/or privilege escalation
CVE-2025-61586 FreshRSS is vulnerable to directory enumeration by setting path in its theme field

IV. Related Vulnerabilities

Same product: FreshRSS
Same vendor: FreshRSS
Same weakness: CWE-284

V. Comments for CVE-2025-54591

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