CVE-2016-10026 Missing authorization in n/a

High 7.5 Published 13 Feb 2017 Updated 6 Aug 2024

Remote attackers can revert page changes by exploiting improper permission checks in ikiwiki when specific plugins and CGI are enabled.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2016-10026?

CVE-2016-10026 is a high-severity missing authorization vulnerability in n/a, published on 13 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ikiwiki 3.20161219 does not properly check if a revision changes the access permissions for a page on sites with the git and recentchanges plugins and the CGI interface enabled, which allows remote attackers to revert certain changes by leveraging permissions to change the page before the revision was made.

Weakness: CWE-284

Which versions are affected by CVE-2016-10026?

It affects 1 product.

Products include Ikiwiki Ikiwiki.

How do I fix CVE-2016-10026?

Upgrade to a fixed version.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2016-10026 being exploited?

There is no known exploitation of CVE-2016-10026 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2016-10026, GHSA-r7m6-q359-fprm, UBUNTU-CVE-2016-10026.