An advisory was released by the JPCERT/CC and IPA that a cross-site scripting (XSS) vulnerability had been fixed in version 6.19 of the plugin MaxButtons, which was discovered by “ASAI Ken and Chris Liu”. In looking at the changes made in that version we found that it was a reflected cross-site scripting (XSS) vulnerability.

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This post provides insights on a vulnerability in the WordPress plugin MaxButtons not discovered by us, where the discoverer hadn't provided the details needed for us to confirm the vulnerability while we were adding it to the data set for our service, so the rest of its contents are limited to subscribers of our service.

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