| Vulnerability Name: | CVE-2020-25631 (CCN-192792) |
| Assigned: | 2020-09-21 |
| Published: | 2020-09-21 |
| Updated: | 2020-12-08 |
| Summary: | A vulnerability was found in Moodle 3.9 to 3.9.1, 3.8 to 3.8.4 and 3.7 to 3.7.7 where it was possible to include JavaScript in a book's chapter title, which was not escaped on the "Add new chapter" page. This is fixed in 3.9.2, 3.8.5 and 3.7.8.
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| CVSS v3 Severity: | 6.1 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
5.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)| Exploitability Metrics: | Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required | | Scope: | Scope (S): Changed
| | Impact Metrics: | Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None |
6.1 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
5.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)| Exploitability Metrics: | Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required | | Scope: | Scope (S): Changed
| | Impact Metrics: | Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None |
|
| CVSS v2 Severity: | 4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N)| Exploitability Metrics: | Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None | | Impact Metrics: | Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None |
5.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:N)| Exploitability Metrics: | Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
| | Impact Metrics: | Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None |
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| Vulnerability Type: | CWE-79
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| Vulnerability Consequences: | Cross-Site Scripting |
| References: | Source: MITRE
Type: CNA
CVE-2020-25631
Source: XF
Type: UNKNOWN
moodle-cve202025631-xss(192792)
Source: CCN
Type: Moodle Security Advisory MSA-20-0015
Chapter name in book not always escaped with forceclean enabled
Source: CONFIRM
Type: Patch, Vendor Advisory
https://moodle.org/mod/forum/discuss.php?d=410843
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| Vulnerable Configuration: | Configuration 1:
cpe:/a:moodle:moodle:*:*:*:*:*:*:*:* (Version >= 3.7.0 and < 3.7.8)OR cpe:/a:moodle:moodle:*:*:*:*:*:*:*:* (Version >= 3.8.0 and < 3.8.5)OR cpe:/a:moodle:moodle:*:*:*:*:*:*:*:* (Version >= 3.9.0 and < 3.9.2)
Configuration CCN 1:
cpe:/a:moodle:moodle:3.7.0:*:*:*:*:*:*:*OR cpe:/a:moodle:moodle:3.9.0:-:*:*:*:*:*:*OR cpe:/a:moodle:moodle:3.9.1:*:*:*:*:*:*:*OR cpe:/a:moodle:moodle:3.8.4:*:*:*:*:*:*:*OR cpe:/a:moodle:moodle:3.7.7:*:*:*:*:*:*:*
 Denotes that component is vulnerable |
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