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Vulnerability details: VCID-vytn-9ddw-hufe
Vulnerability ID VCID-vytn-9ddw-hufe
Aliases CVE-2023-46858
Summary Moodle 4.3 allows /grade/report/grader/index.php?searchvalue= reflected XSS when logged in as a teacher. NOTE: the Moodle Security FAQ link states "Some forms of rich content [are] used by teachers to enhance their courses ... admins and teachers can post XSS-capable content, but students can not."
Status Published
Exploitability 0.5
Weighted Severity 4.9
Risk 2.5
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00109 https://api.first.org/data/v1/epss?cve=CVE-2023-46858
epss 0.00109 https://api.first.org/data/v1/epss?cve=CVE-2023-46858
ssvc Track https://docs.moodle.org/403/en/Security_FAQ#I_have_discovered_Cross_Site_Scripting_.28XSS.29_is_possible_with_Moodle
ssvc Track https://gist.github.com/Abid-Ahmad/12d2b4878eb731e8871b96b7d55125cd
cvssv3.1 5.4 https://nvd.nist.gov/vuln/detail/CVE-2023-46858
ssvc Track https://packetstormsecurity.com/files/175277/Moodle-4.3-Cross-Site-Scripting.html
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2023-46858
https://docs.moodle.org/403/en/Security_FAQ#I_have_discovered_Cross_Site_Scripting_.28XSS.29_is_possible_with_Moodle
https://gist.github.com/Abid-Ahmad/12d2b4878eb731e8871b96b7d55125cd
https://packetstormsecurity.com/files/175277/Moodle-4.3-Cross-Site-Scripting.html
cpe:2.3:a:moodle:moodle:4.3.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:moodle:moodle:4.3.0:*:*:*:*:*:*:*
CVE-2023-46858 https://nvd.nist.gov/vuln/detail/CVE-2023-46858
No exploits are available.
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-06-28T18:19:37Z/ Found at https://docs.moodle.org/403/en/Security_FAQ#I_have_discovered_Cross_Site_Scripting_.28XSS.29_is_possible_with_Moodle
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-06-28T18:19:37Z/ Found at https://gist.github.com/Abid-Ahmad/12d2b4878eb731e8871b96b7d55125cd
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2023-46858
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/2024-06-28T18:19:37Z/ Found at https://packetstormsecurity.com/files/175277/Moodle-4.3-Cross-Site-Scripting.html
Exploit Prediction Scoring System (EPSS)
Percentile 0.30033
EPSS Score 0.00109
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T14:31:10.984660+00:00 EPSS Importer Import https://epss.cyentia.com/epss_scores-current.csv.gz 36.1.3