Vulnerability in Magpierss Project
CVE-2021-28940
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.033 (88.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: 0.000
Affected products
- Magpierss Project — versions 0.72
Weakness classification (CWE)
References
- pastebin.com/kpzHKKJu (Exploit, Third Party Advisory)
- github.com/kellan/magpierss/blob/04d2a88b97fdba5813d01dc0d56c772d97360bb5/extli… (Third Party Advisory)
- www.exploit-db.com/exploits/49643 (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-28940?
- CVE-2021-28940 is a critical-severity vulnerability in Magpierss Project, classified under Improper Encoding or Escaping of Output. CVSS score: 9.8/10. Published 2021-04-02.
- How severe is CVE-2021-28940?
- Critical severity. CVSS v3 base score is 9.8 out of 10.