What is GHSA-fpm8-6xjp-2hq8?

GHSA-fpm8-6xjp-2hq8 is a security advisory published by GitHub Security Advisories with Low severity. HTMLy 3.1.1 contains a Server-Side Request Forgery (SSRF) vulnerability in the RSS feed import...

Which CVE IDs does GHSA-fpm8-6xjp-2hq8 cover?

GHSA-fpm8-6xjp-2hq8 covers the following CVE IDs: CVE-2026-57940. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

GHSA-fpm8-6xjp-2hq8Low

HTMLy 3.1.1 contains a Server-Side Request Forgery (SSRF) vulnerability in the RSS feed import...

Vendor

GitHub Security Advisories

Published

June 26, 2026

Last Modified

June 26, 2026

🔗 CVE IDs covered (1)

CVE-2026-57940 →

📋 Description

HTMLy 3.1.1 contains a Server-Side Request Forgery (SSRF) vulnerability in the RSS feed import functionality. The function get_feed() in system/admin/admin.php passes user-supplied $feed_url directly to file_get_contents() without any validation. An authenticated attacker with administrative privileges can exploit this by entering a crafted URL (e.g., http://dnslog.example.com, file:///etc/passwd, or http://169.254.169.254 in cloud contexts) via Tools -> Import RSS. The server will then make a request to the attacker-controlled target.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-57940
https://github.com/danpros/htmly/blob/c8b7ed9af39a266b256759becf26dba6a59e11e6/system/admin/admin.php#L1549-L1551
https://github.com/advisories/GHSA-fpm8-6xjp-2hq8