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Fencer Vulns
high 8.8

CVE-2020-10221 kev in the critical feed json

lib/ajaxHandlers/ajaxAddTemplate.php in rConfig through 3.94 allows remote attackers to execute arbitrary OS commands via shell metacharact…

published 2020-03-08 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-2679

cvss
8.8
version 3.1, CNA
cisa kev
Exploited
added 2021-11-03
epss
77.1%
EPSS 77.1% chance of exploitation in 30 days, percentile 99.5%
public exploits
1
Exploit-DB, plus a Nuclei check

Summary

lib/ajaxHandlers/ajaxAddTemplate.php in rConfig through 3.94 allows remote attackers to execute arbitrary OS commands via shell metacharacters in the fileName POST parameter.

Patch / fix

cisa required action Apply updates per vendor instructions.

Timeline

  1. Published
  2. First public exploit (EDB-48207)
  3. Added to CISA KEV
  4. CISA patch deadline
  5. CISA SSVC: exploitation active

Known exploited

Added
5 y ago
Patch by
2022-05-03 (4 y ago)
Ransomware
Not known
Required action
Apply updates per vendor instructions.
Vendor, product
rConfig, rConfig
CISA name
rConfig OS Command Injection Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
21 mo ago

Exploit prediction

77.12% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-48207 rConfig 3.93 - 'ajaxAddTemplate.php' Authenticated Remote Code Execution webapps, 2020-03-12
  • Nuclei template rConfig <= 3.9.4 - Authenticated OS Command Injection nuclei detection template
  • engindemirbilek.github.io https://engindemirbilek.github.io/rconfig-3.93-rce referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/EnginDemirbilek/EnginDemirbilek.github.io/blob/master/rconfig-3.93-rce.html referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/156687/rConfig-3.93-Authenticated-Remote-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 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 9.0 AV:N/AC:L/Au:S/C:C/I:C/A:C

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

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.