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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.

PUBLISHED Reserved 2026-06-26 | Published 2026-06-26 | Updated 2026-06-26 | Assigner mitre




LOW: 2.1CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:N/R:A/V:D/RE:L/U:Clear

Problem types

CWE-918 Server-Side Request Forgery (SSRF)

Product status

Default status
unknown

3.1.1 (semver)
affected

References

github.com/...56759becf26dba6a59e11e6/system/admin/admin.php

cve.org (CVE-2026-57940)

nvd.nist.gov (CVE-2026-57940)

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