Critical severity9.8NVD Advisory· Published Apr 2, 2021· Updated Jun 17, 2026

CVE-2021-28940

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Magpierss Project/Magpierss
cpe:2.3:a:magpierss_project:magpierss:0.72:*:*:*:*:*:*:*
MagpieRSS/MagpieRSSdescription
Magpierss/Magpierssllm-fuzzy
Range: <=0.72

Patches

Vulnerability mechanics

References

pastebin.com/kpzHKKJunvdExploitThird Party Advisory
www.exploit-db.com/exploits/49643nvdExploitThird Party AdvisoryVDB Entry
github.com/kellan/magpierss/blob/04d2a88b97fdba5813d01dc0d56c772d97360bb5/extlib/Snoopy.class.incnvdThird Party Advisory

News mentions

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cvss	0.637
epss	0.003
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000