CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-21861

baserCMS is a website development framework. Prior to version 5.2.3, baserCMS contains an OS command injection vulnerability in the core update functionality. An authenticated administrator can execute arbitrary OS commands on the server due to improper handling of user-controlled input that is directly passed to exec() without sufficient validation or escaping. This issue has been patched in version 5.2.3.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.002

EPSS Ranking 38.7%

CVSS Severity

CVSS v3 Score 9.1

References

Products affected by CVE-2026-21861

Basercms » Basercms » Version: N/A

cpe:2.3:a:basercms:basercms:-
Basercms » Basercms » Version: 1.5.4

cpe:2.3:a:basercms:basercms:1.5.4
Basercms » Basercms » Version: 1.5.5

cpe:2.3:a:basercms:basercms:1.5.5
Basercms » Basercms » Version: 1.5.6

cpe:2.3:a:basercms:basercms:1.5.6
Basercms » Basercms » Version: 1.5.7

cpe:2.3:a:basercms:basercms:1.5.7
Basercms » Basercms » Version: 1.5.8

cpe:2.3:a:basercms:basercms:1.5.8
Basercms » Basercms » Version: 1.5.9

cpe:2.3:a:basercms:basercms:1.5.9
Basercms » Basercms » Version: 1.6.0

cpe:2.3:a:basercms:basercms:1.6.0
Basercms » Basercms » Version: 1.6.1

cpe:2.3:a:basercms:basercms:1.6.1
Basercms » Basercms » Version: 1.6.10

cpe:2.3:a:basercms:basercms:1.6.10
Basercms » Basercms » Version: 1.6.11

cpe:2.3:a:basercms:basercms:1.6.11
Basercms » Basercms » Version: 1.6.11.1

cpe:2.3:a:basercms:basercms:1.6.11.1
Basercms » Basercms » Version: 1.6.11.2

cpe:2.3:a:basercms:basercms:1.6.11.2
Basercms » Basercms » Version: 1.6.11.3

cpe:2.3:a:basercms:basercms:1.6.11.3
Basercms » Basercms » Version: 1.6.11.4

cpe:2.3:a:basercms:basercms:1.6.11.4
Basercms » Basercms » Version: 1.6.12

cpe:2.3:a:basercms:basercms:1.6.12
Basercms » Basercms » Version: 1.6.13

cpe:2.3:a:basercms:basercms:1.6.13
Basercms » Basercms » Version: 1.6.13.1

cpe:2.3:a:basercms:basercms:1.6.13.1
Basercms » Basercms » Version: 1.6.13.2

cpe:2.3:a:basercms:basercms:1.6.13.2
Basercms » Basercms » Version: 1.6.13.3

cpe:2.3:a:basercms:basercms:1.6.13.3
Basercms » Basercms » Version: 1.6.13.4

cpe:2.3:a:basercms:basercms:1.6.13.4
Basercms » Basercms » Version: 1.6.13.5

cpe:2.3:a:basercms:basercms:1.6.13.5
Basercms » Basercms » Version: 1.6.13.6

cpe:2.3:a:basercms:basercms:1.6.13.6
Basercms » Basercms » Version: 1.6.14

cpe:2.3:a:basercms:basercms:1.6.14
Basercms » Basercms » Version: 1.6.15

cpe:2.3:a:basercms:basercms:1.6.15
Basercms » Basercms » Version: 1.6.2

cpe:2.3:a:basercms:basercms:1.6.2
Basercms » Basercms » Version: 1.6.3

cpe:2.3:a:basercms:basercms:1.6.3
Basercms » Basercms » Version: 1.6.4

cpe:2.3:a:basercms:basercms:1.6.4
Basercms » Basercms » Version: 1.6.5

cpe:2.3:a:basercms:basercms:1.6.5
Basercms » Basercms » Version: 1.6.6

cpe:2.3:a:basercms:basercms:1.6.6
Basercms » Basercms » Version: 1.6.7

cpe:2.3:a:basercms:basercms:1.6.7
Basercms » Basercms » Version: 1.6.7.1

cpe:2.3:a:basercms:basercms:1.6.7.1
Basercms » Basercms » Version: 1.6.8

cpe:2.3:a:basercms:basercms:1.6.8
Basercms » Basercms » Version: 1.6.9

cpe:2.3:a:basercms:basercms:1.6.9
Basercms » Basercms » Version: 1.6.9.1

cpe:2.3:a:basercms:basercms:1.6.9.1
Basercms » Basercms » Version: 2.0.0

cpe:2.3:a:basercms:basercms:2.0.0
Basercms » Basercms » Version: 2.0.1

cpe:2.3:a:basercms:basercms:2.0.1
Basercms » Basercms » Version: 2.0.2

cpe:2.3:a:basercms:basercms:2.0.2
Basercms » Basercms » Version: 2.0.3

cpe:2.3:a:basercms:basercms:2.0.3
Basercms » Basercms » Version: 2.0.4

cpe:2.3:a:basercms:basercms:2.0.4
Basercms » Basercms » Version: 2.0.5

cpe:2.3:a:basercms:basercms:2.0.5
Basercms » Basercms » Version: 2.0.5.1

cpe:2.3:a:basercms:basercms:2.0.5.1
Basercms » Basercms » Version: 2.1.0

cpe:2.3:a:basercms:basercms:2.1.0
Basercms » Basercms » Version: 2.1.1

cpe:2.3:a:basercms:basercms:2.1.1
Basercms » Basercms » Version: 2.1.2

cpe:2.3:a:basercms:basercms:2.1.2
Basercms » Basercms » Version: 3.0.0

cpe:2.3:a:basercms:basercms:3.0.0
Basercms » Basercms » Version: 3.0.0.1

cpe:2.3:a:basercms:basercms:3.0.0.1
Basercms » Basercms » Version: 3.0.1

cpe:2.3:a:basercms:basercms:3.0.1
Basercms » Basercms » Version: 3.0.1.1

cpe:2.3:a:basercms:basercms:3.0.1.1
Basercms » Basercms » Version: 3.0.10

cpe:2.3:a:basercms:basercms:3.0.10
Basercms » Basercms » Version: 3.0.10.1

cpe:2.3:a:basercms:basercms:3.0.10.1
Basercms » Basercms » Version: 3.0.11

cpe:2.3:a:basercms:basercms:3.0.11
Basercms » Basercms » Version: 3.0.11.1

cpe:2.3:a:basercms:basercms:3.0.11.1
Basercms » Basercms » Version: 3.0.12

cpe:2.3:a:basercms:basercms:3.0.12
Basercms » Basercms » Version: 3.0.13

cpe:2.3:a:basercms:basercms:3.0.13
Basercms » Basercms » Version: 3.0.14

cpe:2.3:a:basercms:basercms:3.0.14
Basercms » Basercms » Version: 3.0.15

cpe:2.3:a:basercms:basercms:3.0.15
Basercms » Basercms » Version: 3.0.16

cpe:2.3:a:basercms:basercms:3.0.16
Basercms » Basercms » Version: 3.0.2

cpe:2.3:a:basercms:basercms:3.0.2
Basercms » Basercms » Version: 3.0.2.1

cpe:2.3:a:basercms:basercms:3.0.2.1
Basercms » Basercms » Version: 3.0.3

cpe:2.3:a:basercms:basercms:3.0.3
Basercms » Basercms » Version: 3.0.3.1

cpe:2.3:a:basercms:basercms:3.0.3.1
Basercms » Basercms » Version: 3.0.4

cpe:2.3:a:basercms:basercms:3.0.4
Basercms » Basercms » Version: 3.0.4.1

cpe:2.3:a:basercms:basercms:3.0.4.1
Basercms » Basercms » Version: 3.0.5

cpe:2.3:a:basercms:basercms:3.0.5
Basercms » Basercms » Version: 3.0.5.1

cpe:2.3:a:basercms:basercms:3.0.5.1
Basercms » Basercms » Version: 3.0.5.2

cpe:2.3:a:basercms:basercms:3.0.5.2
Basercms » Basercms » Version: 3.0.6

cpe:2.3:a:basercms:basercms:3.0.6
Basercms » Basercms » Version: 3.0.6.1

cpe:2.3:a:basercms:basercms:3.0.6.1
Basercms » Basercms » Version: 3.0.6.2

cpe:2.3:a:basercms:basercms:3.0.6.2
Basercms » Basercms » Version: 3.0.7

cpe:2.3:a:basercms:basercms:3.0.7
Basercms » Basercms » Version: 3.0.7.1

cpe:2.3:a:basercms:basercms:3.0.7.1
Basercms » Basercms » Version: 3.0.8

cpe:2.3:a:basercms:basercms:3.0.8
Basercms » Basercms » Version: 3.0.8.1

cpe:2.3:a:basercms:basercms:3.0.8.1
Basercms » Basercms » Version: 3.0.9

cpe:2.3:a:basercms:basercms:3.0.9
Basercms » Basercms » Version: 3.0.9.1

cpe:2.3:a:basercms:basercms:3.0.9.1
Basercms » Basercms » Version: 4.0.0

cpe:2.3:a:basercms:basercms:4.0.0
Basercms » Basercms » Version: 4.0.1

cpe:2.3:a:basercms:basercms:4.0.1
Basercms » Basercms » Version: 4.0.10

cpe:2.3:a:basercms:basercms:4.0.10
Basercms » Basercms » Version: 4.0.10.1

cpe:2.3:a:basercms:basercms:4.0.10.1
Basercms » Basercms » Version: 4.0.11

cpe:2.3:a:basercms:basercms:4.0.11
Basercms » Basercms » Version: 4.0.2

cpe:2.3:a:basercms:basercms:4.0.2
Basercms » Basercms » Version: 4.0.2.1

cpe:2.3:a:basercms:basercms:4.0.2.1
Basercms » Basercms » Version: 4.0.3

cpe:2.3:a:basercms:basercms:4.0.3
Basercms » Basercms » Version: 4.0.4

cpe:2.3:a:basercms:basercms:4.0.4
Basercms » Basercms » Version: 4.0.5

cpe:2.3:a:basercms:basercms:4.0.5
Basercms » Basercms » Version: 4.0.5.1

cpe:2.3:a:basercms:basercms:4.0.5.1
Basercms » Basercms » Version: 4.0.5.2

cpe:2.3:a:basercms:basercms:4.0.5.2
Basercms » Basercms » Version: 4.0.6

cpe:2.3:a:basercms:basercms:4.0.6
Basercms » Basercms » Version: 4.0.7

cpe:2.3:a:basercms:basercms:4.0.7
Basercms » Basercms » Version: 4.0.8

cpe:2.3:a:basercms:basercms:4.0.8
Basercms » Basercms » Version: 4.0.9

cpe:2.3:a:basercms:basercms:4.0.9
Basercms » Basercms » Version: 4.1.0

cpe:2.3:a:basercms:basercms:4.1.0
Basercms » Basercms » Version: 4.1.0.1

cpe:2.3:a:basercms:basercms:4.1.0.1
Basercms » Basercms » Version: 4.1.1

cpe:2.3:a:basercms:basercms:4.1.1
Basercms » Basercms » Version: 4.1.2

cpe:2.3:a:basercms:basercms:4.1.2
Basercms » Basercms » Version: 4.1.3

cpe:2.3:a:basercms:basercms:4.1.3
Basercms » Basercms » Version: 4.1.4

cpe:2.3:a:basercms:basercms:4.1.4
Basercms » Basercms » Version: 4.1.5

cpe:2.3:a:basercms:basercms:4.1.5
Basercms » Basercms » Version: 4.1.6

cpe:2.3:a:basercms:basercms:4.1.6
Basercms » Basercms » Version: 4.1.7

cpe:2.3:a:basercms:basercms:4.1.7
Basercms » Basercms » Version: 4.1.8

cpe:2.3:a:basercms:basercms:4.1.8
Basercms » Basercms » Version: 4.3.6

cpe:2.3:a:basercms:basercms:4.3.6
Basercms » Basercms » Version: 4.4.0

cpe:2.3:a:basercms:basercms:4.4.0
Basercms » Basercms » Version: 4.4.1

cpe:2.3:a:basercms:basercms:4.4.1
Basercms » Basercms » Version: 4.4.1.1

cpe:2.3:a:basercms:basercms:4.4.1.1
Basercms » Basercms » Version: 4.4.2.1

cpe:2.3:a:basercms:basercms:4.4.2.1
Basercms » Basercms » Version: 4.4.3

cpe:2.3:a:basercms:basercms:4.4.3
Basercms » Basercms » Version: 4.4.4

cpe:2.3:a:basercms:basercms:4.4.4
Basercms » Basercms » Version: 4.4.5

cpe:2.3:a:basercms:basercms:4.4.5
Basercms » Basercms » Version: 4.4.6

cpe:2.3:a:basercms:basercms:4.4.6
Basercms » Basercms » Version: 4.4.7

cpe:2.3:a:basercms:basercms:4.4.7
Basercms » Basercms » Version: 4.4.8

cpe:2.3:a:basercms:basercms:4.4.8
Basercms » Basercms » Version: 4.5.0

cpe:2.3:a:basercms:basercms:4.5.0
Basercms » Basercms » Version: 4.5.1

cpe:2.3:a:basercms:basercms:4.5.1
Basercms » Basercms » Version: 4.5.2

cpe:2.3:a:basercms:basercms:4.5.2
Basercms » Basercms » Version: 4.5.3

cpe:2.3:a:basercms:basercms:4.5.3
Basercms » Basercms » Version: 4.5.4

cpe:2.3:a:basercms:basercms:4.5.4
Basercms » Basercms » Version: 4.5.5

cpe:2.3:a:basercms:basercms:4.5.5
Basercms » Basercms » Version: 4.5.6

cpe:2.3:a:basercms:basercms:4.5.6
Basercms » Basercms » Version: 4.6.0

cpe:2.3:a:basercms:basercms:4.6.0
Basercms » Basercms » Version: 4.6.1

cpe:2.3:a:basercms:basercms:4.6.1
Basercms » Basercms » Version: 4.6.1.1

cpe:2.3:a:basercms:basercms:4.6.1.1
Basercms » Basercms » Version: 4.6.2

cpe:2.3:a:basercms:basercms:4.6.2
Basercms » Basercms » Version: 4.6.3

cpe:2.3:a:basercms:basercms:4.6.3
Basercms » Basercms » Version: 4.7.0

cpe:2.3:a:basercms:basercms:4.7.0
Basercms » Basercms » Version: 4.7.2

cpe:2.3:a:basercms:basercms:4.7.2
Basercms » Basercms » Version: 4.7.3

cpe:2.3:a:basercms:basercms:4.7.3
Basercms » Basercms » Version: 4.7.5

cpe:2.3:a:basercms:basercms:4.7.5
Basercms » Basercms » Version: 4.7.6

cpe:2.3:a:basercms:basercms:4.7.6
Basercms » Basercms » Version: 4.7.7

cpe:2.3:a:basercms:basercms:4.7.7
Basercms » Basercms » Version: 4.8.0

cpe:2.3:a:basercms:basercms:4.8.0
Basercms » Basercms » Version: 5.0.0

cpe:2.3:a:basercms:basercms:5.0.0
Basercms » Basercms » Version: 5.0.1

cpe:2.3:a:basercms:basercms:5.0.1
Basercms » Basercms » Version: 5.0.10

cpe:2.3:a:basercms:basercms:5.0.10
Basercms » Basercms » Version: 5.0.11

cpe:2.3:a:basercms:basercms:5.0.11
Basercms » Basercms » Version: 5.0.12

cpe:2.3:a:basercms:basercms:5.0.12
Basercms » Basercms » Version: 5.0.14

cpe:2.3:a:basercms:basercms:5.0.14
Basercms » Basercms » Version: 5.0.15

cpe:2.3:a:basercms:basercms:5.0.15
Basercms » Basercms » Version: 5.0.16

cpe:2.3:a:basercms:basercms:5.0.16
Basercms » Basercms » Version: 5.0.17

cpe:2.3:a:basercms:basercms:5.0.17
Basercms » Basercms » Version: 5.0.18

cpe:2.3:a:basercms:basercms:5.0.18
Basercms » Basercms » Version: 5.0.19

cpe:2.3:a:basercms:basercms:5.0.19
Basercms » Basercms » Version: 5.0.2

cpe:2.3:a:basercms:basercms:5.0.2
Basercms » Basercms » Version: 5.0.20

cpe:2.3:a:basercms:basercms:5.0.20
Basercms » Basercms » Version: 5.0.21

cpe:2.3:a:basercms:basercms:5.0.21
Basercms » Basercms » Version: 5.0.3

cpe:2.3:a:basercms:basercms:5.0.3
Basercms » Basercms » Version: 5.0.4

cpe:2.3:a:basercms:basercms:5.0.4
Basercms » Basercms » Version: 5.0.5

cpe:2.3:a:basercms:basercms:5.0.5
Basercms » Basercms » Version: 5.0.6

cpe:2.3:a:basercms:basercms:5.0.6
Basercms » Basercms » Version: 5.0.7

cpe:2.3:a:basercms:basercms:5.0.7
Basercms » Basercms » Version: 5.0.8

cpe:2.3:a:basercms:basercms:5.0.8
Basercms » Basercms » Version: 5.0.9

cpe:2.3:a:basercms:basercms:5.0.9
Basercms » Basercms » Version: 5.1.0

cpe:2.3:a:basercms:basercms:5.1.0
Basercms » Basercms » Version: 5.1.1

cpe:2.3:a:basercms:basercms:5.1.1
Basercms » Basercms » Version: 5.1.2

cpe:2.3:a:basercms:basercms:5.1.2
Basercms » Basercms » Version: 5.1.3

cpe:2.3:a:basercms:basercms:5.1.3

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-21861

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