Cyber Resilience

CVE-2025-59950

Freshrss ≤ 1.27.0

Public PoC
Published
30 September 2025
Modified
03 October 2025
Patch / advisory
View advisory
CVSS Score v3.1 6.7
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L
EPSS Score 0.0026 18th percentile
Risk Priority 49 floored blend · peak EPSS

Summary

CVE-2025-59950 is a medium-severity Improper Restriction of Rendered UI Layers or Frames (CWE-1021) vulnerability in Freshrss Freshrss. Its CVSS base score is 6.7 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Drive-by Compromise (T1189); ranked at the 18th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

A06:2025 Insecure Design

EU & UK References

Vulnerability Data

FreshRSS is a free, self-hostable RSS aggregator. In versions 1.26.3 and below, due to a bypass of double clickjacking protection (confirmation dialog), it is possible to trick the admin into clicking the Promote button in another user's management page after…

more

the admin double clicks on a button inside an attacker-controlled website. A successful attack can allow the attacker to promote themselves to "admin" and log into other users' accounts; the attacker has to know the specific instance URL they're targeting. This issue is fixed in version 1.27.0.

CWE(s)
CWE-1021

Related Threats

MITRE ATT&CK Enterprise Techniques

T1189 Drive-by Compromise Initial Access
Adversaries may gain access to a system through a user visiting a website over the normal course of browsing.
attack.mitre.org →
T1056 Input Capture Collection
Adversaries may use methods of capturing user input to obtain credentials or collect information.
attack.mitre.org →
T1557 Adversary-in-the-Middle Credential Access
Adversaries may attempt to position themselves between two or more networked devices using an adversary-in-the-middle (AiTM) technique to support follow-on behaviors such as [Network Sniffing](https://attack.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-57769Same product: Freshrss Freshrss
CVE-2025-31134Same product: Freshrss Freshrss
CVE-2025-59948Same product: Freshrss Freshrss
CVE-2025-31136Same product: Freshrss Freshrss
CVE-2025-32015Same product: Freshrss Freshrss
CVE-2025-59949Same product: Freshrss Freshrss
CVE-2025-46341Same product: Freshrss Freshrss
CVE-2025-61586Same product: Freshrss Freshrss
CVE-2025-68148Same product: Freshrss Freshrss
CVE-2025-58173Same product: Freshrss Freshrss

Affected Assets

freshrss
freshrss
≤ 1.27.0

Mitigating Controls

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require implementing frame-ancestors / X-Frame-Options controls that prevent this weakness.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect missing frame protections, but does not itself implement the control.

A.8.23 Web filtering partial match
degrades

Web filtering can block or sandbox untrusted frames, but does not enforce application-level frame-busting or CSP.

A.8.26 Application security requirements partial match
prevents

Application security requirements can mandate frame-ancestors / X-Frame-Options, directly addressing UI redressing risks.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles include isolation of UI layers and proper use of browser security controls.

A.8.28 Secure coding partial match
prevents

Secure coding practices directly require implementation of frame-busting headers or CSP frame-ancestors directives.

References