Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-786g-xv8v-9h93
Advisory ID github_osv/GHSA-786g-xv8v-9h93
Aliases CVE-2021-36398
Summary Moodle Cross-site Scripting vulnerability In Moodle, ID numbers displayed in the web service token list required additional sanitizing to prevent a stored XSS risk.
Status Published
Exploitability 0.5
Weighted Severity 4.9
Risk 2.5
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/03/GHSA-786g-xv8v-9h93/GHSA-786g-xv8v-9h93.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-07T18:57:56Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2021/36xxx/CVE-2021-36398.json

Source Advisory: vulnrichment/CVE-2021-36398

View SSVC decision tree
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]