CVE-2021-28940: Magpierss Project Magpierss

Critical severity, CVSS 9.8. EPSS: 3.3% chance of exploitation in the next 30 days.

Because of a incorrect escaped exec command in MagpieRSS in 0.72 in the /extlib/Snoopy.class.inc file, it is possible to add a extra command to the curl binary. This creates an issue on the /scripts/magpie_debug.php and /scripts/magpie_simple.php page that if you send a specific https url in the RSS URL field, you are able to execute arbitrary commands.

Affected products

• Magpierss Project Magpierss: version 0.72 only

Published 2021-04-02. Last modified 2026-06-17.