CVE-2026-37107 HTMLy - Privilege Escalation

HTMLy 3.1.1 contains a privilege escalation caused by improper access control in the get_feed function of admin.php, letting remote attackers escalate privileges, exploit requires remote access.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Not required
EPSS
0.38% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
13 October 2026
Updated
15 October 2026
Weakness
CWE-269

Vendor fix

Update to the latest version of HTMLy.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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