Detections
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SCA: security update for miniflux.app/v2 (GHSA-mqqg-xjhj-wfgw)

medium Tenable Self-Hosted Container Security Plugin ID 434628

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Miniflux is a feed reader. Since v2.0.25, Miniflux will automatically proxy images served over HTTP to
 prevent mixed content errors. When an outbound request made by the Go HTTP client fails, the
 `html.ServerError` is returned unescaped without the expected Content Security Policy header added to
 valid responses. By creating an RSS feed item with the inline description containing an `<img>` tag with a
 `srcset` attribute pointing to an invalid URL like `http:a<script>alert(1)</script>`, we can coerce the
 proxy handler into an error condition where the invalid URL is returned unescaped and in full. This
 results in JavaScript execution on the Miniflux instance as soon as the user is convinced (e.g. by a
 message in the alt text) to open the broken image. An attacker can execute arbitrary JavaScript in the
 context of a victim Miniflux user when they open a broken image in a crafted RSS feed. This can be used to
 perform actions on the Miniflux instance as that user and gain administrative access to the Miniflux
 instance if it is reachable and the victim is an administrator. A patch is available in version 2.0.43. As
 a workaround sisable image proxy; default value is `http-only`. (CVE-2023-27592)

See Also

https://github.com/advisories/GHSA-mqqg-xjhj-wfgw

Plugin Details

Severity: Medium

ID: 434628

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 8/19/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.14

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

CVSS Score Source: CVE-2023-27592

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 4/2/2025

Vulnerability Publication Date: 3/17/2023

Reference Information

CVE: CVE-2023-27592

cwe: CWE-79