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Fencer Vulns
medium 5.5

CVE-2023-3578 json

DedeCMS co_do.php server-side request forgery

published 2023-07-10 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-44228

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.6%
EPSS 3.6% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known, plus a Nuclei check

Summary

A vulnerability classified as critical was found in DedeCMS 5.7.109. Affected by this vulnerability is an unknown functionality of the file co_do.php. The manipulation of the argument rssurl leads to server-side request forgery. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-233371.

Exploit prediction

3.57% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template DedeCMS 5.7.109 - Server-Side Request Forgery nuclei detection template
  • github.com https://github.com/nightcloudos/cve/blob/main/SSRF.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.5 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA 3.0 5.5 CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA 2.0 5.2 AV:A/AC:L/Au:S/C:P/I:P/A:P
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • n/a DedeCMS

Classification

Weakness
  • CWE-918 Server-Side Request Forgery

References

Sources

Fencer Vulns 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.