What is CVE-2021-28941?

CVE-2021-28941 is a medium-severity vulnerability in Magpierss Project, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2021-04-02.

How severe is CVE-2021-28941?

Medium severity. CVSS v3 base score is 5.3 out of 10.

SSRF in Magpierss Project

CVE-2021-28941

Because of no validation on a curl command in MagpieRSS 0.72 in the /extlib/Snoopy.class.inc file, when you send a request to the /scripts/magpie_debug.php or /scripts/magpie_simple.php page, it's possible to request any internal page if you use a https request.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2021-04-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (65.2th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Magpierss Project — versions 0.72

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

pastebin.com/kpzHKKJu (Exploit, Third Party Advisory)
github.com/kellan/magpierss/blob/04d2a88b97fdba5813d01dc0d56c772d97360bb5/extli… (Third Party Advisory)

Frequently asked questions

What is CVE-2021-28941?: CVE-2021-28941 is a medium-severity vulnerability in Magpierss Project, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2021-04-02.
How severe is CVE-2021-28941?: Medium severity. CVSS v3 base score is 5.3 out of 10.