CVE-2023-27592 — Miniflux is a feed reader

Miniflux is a feed reader. Since v2.0.25, Miniflux will automatically proxy images served over HTTP to prevent mixed content errors.

01What is this vulnerability?

Miniflux is a feed reader. Since v2.0.25, Miniflux will automatically proxy images served over HTTP to prevent mixed content errors.

02Affected products

Vendor	Product	Versions
miniflux	v2	>= 2.0.25, < 2.0.43

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-03-17T19:04:00.630Z
• Last modified: 2025-02-25T14:53:55.753Z

09References

• github.com — https://github.com/miniflux/v2/security/advisories/GHSA-mqqg-xjhj-wfgw
• github.com — https://github.com/miniflux/v2/pull/1746
• github.com — https://github.com/miniflux/v2/blob/b2fd84e0d376a3af6329b9bb2e772ce38a25c31c/ui/…
• github.com — https://github.com/miniflux/v2/blob/b2fd84e0d376a3af6329b9bb2e772ce38a25c31c/ui/…
• github.com — https://github.com/miniflux/v2/releases/tag/2.0.25
• github.com — https://github.com/miniflux/v2/releases/tag/2.0.43
• miniflux.app — https://miniflux.app/docs/configuration.html#proxy-images