CVE-2020-24948: The ao_ccss_import AJAX call in Autoptimize Wordpress Plugin 2.7.6 does not ensure that the file provided is a legitimate Zip file, allowing high privilege users to upload arbitrary files, such as PHP

high Affects autoptimize (WordPress plugin). Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

The ao_ccss_import AJAX call in Autoptimize Wordpress Plugin 2.7.6 does not ensure that the file provided is a legitimate Zip file, allowing high privilege users to upload arbitrary files, such as PHP

Package
autoptimize (WordPress plugin) WordPress
Affected versions
<2.7.7
Fixed in
2.7.7
Severity
high  CVSS 7.2
Exploitation
not on CISA KEV · EPSS 13% (96.3th percentile)
Published
2020-09-03
Source
nvd

References

CWE-434
NVD recordautoptimize (WordPress plugin) advisories

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# one-time install
pip install phpwarden

# then
phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

Install docs   How findings are ranked

Related advisories