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Fencer Vulns
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 2020-11-13 5 y ago modified 2026-06-17 4 mo 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.

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, 2026-11-08).

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 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.