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Fencer Intel
high 8.3

CVE-2020-24140 json

Server-side request forgery in Wcms 0.3.2 let an attacker send crafted requests from the back-end server of a vulnerable web application vi…

published 5y ago modified 4mo ago also EUVD-2020-16876

cvss
8.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits
0
none known

Summary

Server-side request forgery in Wcms 0.3.2 let an attacker send crafted requests from the back-end server of a vulnerable web application via the pagename parameter to wex/html.php. It can help identify open ports, local network hosts and execute command on local services.

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Exploit prediction

1.16% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/vedees/wcms/issues/11 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-918 Server-Side Request Forgery

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.