CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2025-53021

A session fixation vulnerability in Moodle 3.x through 3.11.18 allows unauthenticated attackers to hijack user sessions via the sesskey parameter. The sesskey can be obtained without authentication and reused within the OAuth2 login flow, resulting in the victim's session being linked to the attacker's. Successful exploitation results in full account takeover. According to the Moodle Releases page, "Bug fixes for security issues in 3.11.x ended 11 December 2023." NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.001

EPSS Ranking 22.8%

CVSS Severity

CVSS v3 Score 4.2

References

Products affected by CVE-2025-53021

Moodle » Moodle » Version: 3.0.0

cpe:2.3:a:moodle:moodle:3.0.0
Moodle » Moodle » Version: 3.0.1

cpe:2.3:a:moodle:moodle:3.0.1
Moodle » Moodle » Version: 3.0.10

cpe:2.3:a:moodle:moodle:3.0.10
Moodle » Moodle » Version: 3.0.2

cpe:2.3:a:moodle:moodle:3.0.2
Moodle » Moodle » Version: 3.0.3

cpe:2.3:a:moodle:moodle:3.0.3
Moodle » Moodle » Version: 3.0.4

cpe:2.3:a:moodle:moodle:3.0.4
Moodle » Moodle » Version: 3.0.5

cpe:2.3:a:moodle:moodle:3.0.5
Moodle » Moodle » Version: 3.0.6

cpe:2.3:a:moodle:moodle:3.0.6
Moodle » Moodle » Version: 3.0.7

cpe:2.3:a:moodle:moodle:3.0.7
Moodle » Moodle » Version: 3.0.8

cpe:2.3:a:moodle:moodle:3.0.8
Moodle » Moodle » Version: 3.0.9

cpe:2.3:a:moodle:moodle:3.0.9
Moodle » Moodle » Version: 3.1

cpe:2.3:a:moodle:moodle:3.1
Moodle » Moodle » Version: 3.1.0

cpe:2.3:a:moodle:moodle:3.1.0
Moodle » Moodle » Version: 3.1.1

cpe:2.3:a:moodle:moodle:3.1.1
Moodle » Moodle » Version: 3.1.10

cpe:2.3:a:moodle:moodle:3.1.10
Moodle » Moodle » Version: 3.1.11

cpe:2.3:a:moodle:moodle:3.1.11
Moodle » Moodle » Version: 3.1.12

cpe:2.3:a:moodle:moodle:3.1.12
Moodle » Moodle » Version: 3.1.13

cpe:2.3:a:moodle:moodle:3.1.13
Moodle » Moodle » Version: 3.1.14

cpe:2.3:a:moodle:moodle:3.1.14
Moodle » Moodle » Version: 3.1.15

cpe:2.3:a:moodle:moodle:3.1.15
Moodle » Moodle » Version: 3.1.16

cpe:2.3:a:moodle:moodle:3.1.16
Moodle » Moodle » Version: 3.1.17

cpe:2.3:a:moodle:moodle:3.1.17
Moodle » Moodle » Version: 3.1.18

cpe:2.3:a:moodle:moodle:3.1.18
Moodle » Moodle » Version: 3.1.2

cpe:2.3:a:moodle:moodle:3.1.2
Moodle » Moodle » Version: 3.1.3

cpe:2.3:a:moodle:moodle:3.1.3
Moodle » Moodle » Version: 3.1.4

cpe:2.3:a:moodle:moodle:3.1.4
Moodle » Moodle » Version: 3.1.5

cpe:2.3:a:moodle:moodle:3.1.5
Moodle » Moodle » Version: 3.1.6

cpe:2.3:a:moodle:moodle:3.1.6
Moodle » Moodle » Version: 3.1.7

cpe:2.3:a:moodle:moodle:3.1.7
Moodle » Moodle » Version: 3.1.8

cpe:2.3:a:moodle:moodle:3.1.8
Moodle » Moodle » Version: 3.1.9

cpe:2.3:a:moodle:moodle:3.1.9
Moodle » Moodle » Version: 3.10.0

cpe:2.3:a:moodle:moodle:3.10.0
Moodle » Moodle » Version: 3.10.1

cpe:2.3:a:moodle:moodle:3.10.1
Moodle » Moodle » Version: 3.10.10

cpe:2.3:a:moodle:moodle:3.10.10
Moodle » Moodle » Version: 3.10.11

cpe:2.3:a:moodle:moodle:3.10.11
Moodle » Moodle » Version: 3.10.2

cpe:2.3:a:moodle:moodle:3.10.2
Moodle » Moodle » Version: 3.10.3

cpe:2.3:a:moodle:moodle:3.10.3
Moodle » Moodle » Version: 3.10.4

cpe:2.3:a:moodle:moodle:3.10.4
Moodle » Moodle » Version: 3.10.5

cpe:2.3:a:moodle:moodle:3.10.5
Moodle » Moodle » Version: 3.10.6

cpe:2.3:a:moodle:moodle:3.10.6
Moodle » Moodle » Version: 3.10.7

cpe:2.3:a:moodle:moodle:3.10.7
Moodle » Moodle » Version: 3.10.8

cpe:2.3:a:moodle:moodle:3.10.8
Moodle » Moodle » Version: 3.10.9

cpe:2.3:a:moodle:moodle:3.10.9
Moodle » Moodle » Version: 3.11.0

cpe:2.3:a:moodle:moodle:3.11.0
Moodle » Moodle » Version: 3.11.1

cpe:2.3:a:moodle:moodle:3.11.1
Moodle » Moodle » Version: 3.11.10

cpe:2.3:a:moodle:moodle:3.11.10
Moodle » Moodle » Version: 3.11.11

cpe:2.3:a:moodle:moodle:3.11.11
Moodle » Moodle » Version: 3.11.12

cpe:2.3:a:moodle:moodle:3.11.12
Moodle » Moodle » Version: 3.11.13

cpe:2.3:a:moodle:moodle:3.11.13
Moodle » Moodle » Version: 3.11.14

cpe:2.3:a:moodle:moodle:3.11.14
Moodle » Moodle » Version: 3.11.15

cpe:2.3:a:moodle:moodle:3.11.15
Moodle » Moodle » Version: 3.11.16

cpe:2.3:a:moodle:moodle:3.11.16
Moodle » Moodle » Version: 3.11.17

cpe:2.3:a:moodle:moodle:3.11.17
Moodle » Moodle » Version: 3.11.18

cpe:2.3:a:moodle:moodle:3.11.18
Moodle » Moodle » Version: 3.11.2

cpe:2.3:a:moodle:moodle:3.11.2
Moodle » Moodle » Version: 3.11.3

cpe:2.3:a:moodle:moodle:3.11.3
Moodle » Moodle » Version: 3.11.4

cpe:2.3:a:moodle:moodle:3.11.4
Moodle » Moodle » Version: 3.11.5

cpe:2.3:a:moodle:moodle:3.11.5
Moodle » Moodle » Version: 3.11.6

cpe:2.3:a:moodle:moodle:3.11.6
Moodle » Moodle » Version: 3.11.7

cpe:2.3:a:moodle:moodle:3.11.7
Moodle » Moodle » Version: 3.11.8

cpe:2.3:a:moodle:moodle:3.11.8
Moodle » Moodle » Version: 3.11.9

cpe:2.3:a:moodle:moodle:3.11.9
Moodle » Moodle » Version: 3.2

cpe:2.3:a:moodle:moodle:3.2
Moodle » Moodle » Version: 3.2.0

cpe:2.3:a:moodle:moodle:3.2.0
Moodle » Moodle » Version: 3.2.1

cpe:2.3:a:moodle:moodle:3.2.1
Moodle » Moodle » Version: 3.2.2

cpe:2.3:a:moodle:moodle:3.2.2
Moodle » Moodle » Version: 3.2.3

cpe:2.3:a:moodle:moodle:3.2.3
Moodle » Moodle » Version: 3.2.4

cpe:2.3:a:moodle:moodle:3.2.4
Moodle » Moodle » Version: 3.2.5

cpe:2.3:a:moodle:moodle:3.2.5
Moodle » Moodle » Version: 3.2.6

cpe:2.3:a:moodle:moodle:3.2.6
Moodle » Moodle » Version: 3.2.7

cpe:2.3:a:moodle:moodle:3.2.7
Moodle » Moodle » Version: 3.2.8

cpe:2.3:a:moodle:moodle:3.2.8
Moodle » Moodle » Version: 3.2.9

cpe:2.3:a:moodle:moodle:3.2.9
Moodle » Moodle » Version: 3.3

cpe:2.3:a:moodle:moodle:3.3
Moodle » Moodle » Version: 3.3.0

cpe:2.3:a:moodle:moodle:3.3.0
Moodle » Moodle » Version: 3.3.1

cpe:2.3:a:moodle:moodle:3.3.1
Moodle » Moodle » Version: 3.3.2

cpe:2.3:a:moodle:moodle:3.3.2
Moodle » Moodle » Version: 3.3.3

cpe:2.3:a:moodle:moodle:3.3.3
Moodle » Moodle » Version: 3.3.4

cpe:2.3:a:moodle:moodle:3.3.4
Moodle » Moodle » Version: 3.3.5

cpe:2.3:a:moodle:moodle:3.3.5
Moodle » Moodle » Version: 3.3.6

cpe:2.3:a:moodle:moodle:3.3.6
Moodle » Moodle » Version: 3.3.7

cpe:2.3:a:moodle:moodle:3.3.7
Moodle » Moodle » Version: 3.3.8

cpe:2.3:a:moodle:moodle:3.3.8
Moodle » Moodle » Version: 3.3.9

cpe:2.3:a:moodle:moodle:3.3.9
Moodle » Moodle » Version: 3.4

cpe:2.3:a:moodle:moodle:3.4
Moodle » Moodle » Version: 3.4.0

cpe:2.3:a:moodle:moodle:3.4.0
Moodle » Moodle » Version: 3.4.1

cpe:2.3:a:moodle:moodle:3.4.1
Moodle » Moodle » Version: 3.4.2

cpe:2.3:a:moodle:moodle:3.4.2
Moodle » Moodle » Version: 3.4.3

cpe:2.3:a:moodle:moodle:3.4.3
Moodle » Moodle » Version: 3.4.4

cpe:2.3:a:moodle:moodle:3.4.4
Moodle » Moodle » Version: 3.4.5

cpe:2.3:a:moodle:moodle:3.4.5
Moodle » Moodle » Version: 3.4.6

cpe:2.3:a:moodle:moodle:3.4.6
Moodle » Moodle » Version: 3.4.7

cpe:2.3:a:moodle:moodle:3.4.7
Moodle » Moodle » Version: 3.4.8

cpe:2.3:a:moodle:moodle:3.4.8
Moodle » Moodle » Version: 3.4.9

cpe:2.3:a:moodle:moodle:3.4.9
Moodle » Moodle » Version: 3.5

cpe:2.3:a:moodle:moodle:3.5
Moodle » Moodle » Version: 3.5.0

cpe:2.3:a:moodle:moodle:3.5.0
Moodle » Moodle » Version: 3.5.1

cpe:2.3:a:moodle:moodle:3.5.1
Moodle » Moodle » Version: 3.5.10

cpe:2.3:a:moodle:moodle:3.5.10
Moodle » Moodle » Version: 3.5.11

cpe:2.3:a:moodle:moodle:3.5.11
Moodle » Moodle » Version: 3.5.12

cpe:2.3:a:moodle:moodle:3.5.12
Moodle » Moodle » Version: 3.5.13

cpe:2.3:a:moodle:moodle:3.5.13
Moodle » Moodle » Version: 3.5.14

cpe:2.3:a:moodle:moodle:3.5.14
Moodle » Moodle » Version: 3.5.15

cpe:2.3:a:moodle:moodle:3.5.15
Moodle » Moodle » Version: 3.5.16

cpe:2.3:a:moodle:moodle:3.5.16
Moodle » Moodle » Version: 3.5.17

cpe:2.3:a:moodle:moodle:3.5.17
Moodle » Moodle » Version: 3.5.18

cpe:2.3:a:moodle:moodle:3.5.18
Moodle » Moodle » Version: 3.5.2

cpe:2.3:a:moodle:moodle:3.5.2
Moodle » Moodle » Version: 3.5.3

cpe:2.3:a:moodle:moodle:3.5.3
Moodle » Moodle » Version: 3.5.4

cpe:2.3:a:moodle:moodle:3.5.4
Moodle » Moodle » Version: 3.5.5

cpe:2.3:a:moodle:moodle:3.5.5
Moodle » Moodle » Version: 3.5.6

cpe:2.3:a:moodle:moodle:3.5.6
Moodle » Moodle » Version: 3.5.7

cpe:2.3:a:moodle:moodle:3.5.7
Moodle » Moodle » Version: 3.5.8

cpe:2.3:a:moodle:moodle:3.5.8
Moodle » Moodle » Version: 3.5.9

cpe:2.3:a:moodle:moodle:3.5.9
Moodle » Moodle » Version: 3.6.0

cpe:2.3:a:moodle:moodle:3.6.0
Moodle » Moodle » Version: 3.6.1

cpe:2.3:a:moodle:moodle:3.6.1
Moodle » Moodle » Version: 3.6.10

cpe:2.3:a:moodle:moodle:3.6.10
Moodle » Moodle » Version: 3.6.2

cpe:2.3:a:moodle:moodle:3.6.2
Moodle » Moodle » Version: 3.6.3

cpe:2.3:a:moodle:moodle:3.6.3
Moodle » Moodle » Version: 3.6.4

cpe:2.3:a:moodle:moodle:3.6.4
Moodle » Moodle » Version: 3.6.5

cpe:2.3:a:moodle:moodle:3.6.5
Moodle » Moodle » Version: 3.6.6

cpe:2.3:a:moodle:moodle:3.6.6
Moodle » Moodle » Version: 3.6.7

cpe:2.3:a:moodle:moodle:3.6.7
Moodle » Moodle » Version: 3.6.8

cpe:2.3:a:moodle:moodle:3.6.8
Moodle » Moodle » Version: 3.6.9

cpe:2.3:a:moodle:moodle:3.6.9
Moodle » Moodle » Version: 3.7

cpe:2.3:a:moodle:moodle:3.7
Moodle » Moodle » Version: 3.7.0

cpe:2.3:a:moodle:moodle:3.7.0
Moodle » Moodle » Version: 3.7.1

cpe:2.3:a:moodle:moodle:3.7.1
Moodle » Moodle » Version: 3.7.2

cpe:2.3:a:moodle:moodle:3.7.2
Moodle » Moodle » Version: 3.7.3

cpe:2.3:a:moodle:moodle:3.7.3
Moodle » Moodle » Version: 3.7.4

cpe:2.3:a:moodle:moodle:3.7.4
Moodle » Moodle » Version: 3.7.5

cpe:2.3:a:moodle:moodle:3.7.5
Moodle » Moodle » Version: 3.7.6

cpe:2.3:a:moodle:moodle:3.7.6
Moodle » Moodle » Version: 3.7.7

cpe:2.3:a:moodle:moodle:3.7.7
Moodle » Moodle » Version: 3.7.8

cpe:2.3:a:moodle:moodle:3.7.8
Moodle » Moodle » Version: 3.7.9

cpe:2.3:a:moodle:moodle:3.7.9
Moodle » Moodle » Version: 3.8.0

cpe:2.3:a:moodle:moodle:3.8.0
Moodle » Moodle » Version: 3.8.1

cpe:2.3:a:moodle:moodle:3.8.1
Moodle » Moodle » Version: 3.8.2

cpe:2.3:a:moodle:moodle:3.8.2
Moodle » Moodle » Version: 3.8.3

cpe:2.3:a:moodle:moodle:3.8.3
Moodle » Moodle » Version: 3.8.4

cpe:2.3:a:moodle:moodle:3.8.4
Moodle » Moodle » Version: 3.8.5

cpe:2.3:a:moodle:moodle:3.8.5
Moodle » Moodle » Version: 3.8.6

cpe:2.3:a:moodle:moodle:3.8.6
Moodle » Moodle » Version: 3.8.7

cpe:2.3:a:moodle:moodle:3.8.7
Moodle » Moodle » Version: 3.8.8

cpe:2.3:a:moodle:moodle:3.8.8
Moodle » Moodle » Version: 3.8.9

cpe:2.3:a:moodle:moodle:3.8.9
Moodle » Moodle » Version: 3.9.0

cpe:2.3:a:moodle:moodle:3.9.0
Moodle » Moodle » Version: 3.9.1

cpe:2.3:a:moodle:moodle:3.9.1
Moodle » Moodle » Version: 3.9.10

cpe:2.3:a:moodle:moodle:3.9.10
Moodle » Moodle » Version: 3.9.11

cpe:2.3:a:moodle:moodle:3.9.11
Moodle » Moodle » Version: 3.9.12

cpe:2.3:a:moodle:moodle:3.9.12
Moodle » Moodle » Version: 3.9.13

cpe:2.3:a:moodle:moodle:3.9.13
Moodle » Moodle » Version: 3.9.14

cpe:2.3:a:moodle:moodle:3.9.14
Moodle » Moodle » Version: 3.9.15

cpe:2.3:a:moodle:moodle:3.9.15
Moodle » Moodle » Version: 3.9.16

cpe:2.3:a:moodle:moodle:3.9.16
Moodle » Moodle » Version: 3.9.17

cpe:2.3:a:moodle:moodle:3.9.17
Moodle » Moodle » Version: 3.9.18

cpe:2.3:a:moodle:moodle:3.9.18
Moodle » Moodle » Version: 3.9.19

cpe:2.3:a:moodle:moodle:3.9.19
Moodle » Moodle » Version: 3.9.2

cpe:2.3:a:moodle:moodle:3.9.2
Moodle » Moodle » Version: 3.9.20

cpe:2.3:a:moodle:moodle:3.9.20
Moodle » Moodle » Version: 3.9.21

cpe:2.3:a:moodle:moodle:3.9.21
Moodle » Moodle » Version: 3.9.22

cpe:2.3:a:moodle:moodle:3.9.22
Moodle » Moodle » Version: 3.9.23

cpe:2.3:a:moodle:moodle:3.9.23
Moodle » Moodle » Version: 3.9.24

cpe:2.3:a:moodle:moodle:3.9.24
Moodle » Moodle » Version: 3.9.3

cpe:2.3:a:moodle:moodle:3.9.3
Moodle » Moodle » Version: 3.9.4

cpe:2.3:a:moodle:moodle:3.9.4
Moodle » Moodle » Version: 3.9.5

cpe:2.3:a:moodle:moodle:3.9.5
Moodle » Moodle » Version: 3.9.6

cpe:2.3:a:moodle:moodle:3.9.6
Moodle » Moodle » Version: 3.9.7

cpe:2.3:a:moodle:moodle:3.9.7
Moodle » Moodle » Version: 3.9.8

cpe:2.3:a:moodle:moodle:3.9.8
Moodle » Moodle » Version: 3.9.9

cpe:2.3:a:moodle:moodle:3.9.9

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2025-53021

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