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Fencer Intel
high 8.8

CVE-2020-25538 json

An authenticated attacker can inject malicious code into "lang" parameter in /uno/central.php file in CMSuno 1.6.2 and run this PHP code in…

published 5y ago modified 4mo ago also EUVD-2020-18223

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
10.0%
EPSS 10.0% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

An authenticated attacker can inject malicious code into "lang" parameter in /uno/central.php file in CMSuno 1.6.2 and run this PHP code in the web page. In this way, attacker can takeover the control of the server.

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Timeline

  1. Published
  2. First public exploit (EDB-49485)

Exploit prediction

9.97% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-49485 CMSUno 1.6.2 - 'lang' Remote Code Execution (Authenticated) webapps, 2021-01-28
  • fatihhcelik.blogspot.com https://fatihhcelik.blogspot.com/2020/09/cmsuno-162-remote-code-execution_30.html referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/161162/CMSUno-1.6.2-Remote-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

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.