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Vulnerability details: VCID-937t-wbcy-qfbz
Vulnerability ID VCID-937t-wbcy-qfbz
Aliases CVE-2017-2644
GHSA-93gj-rg98-h7mm
Summary Cross-site Scripting An XSS can occur via evidence of prior learning.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00285 https://api.first.org/data/v1/epss?cve=CVE-2017-2644
cvssv3.1 6.1 https://github.com/moodle/moodle
generic_textual MODERATE https://github.com/moodle/moodle
cvssv3.1 6.1 https://github.com/moodle/moodle/commit/ac40d8b589820929fe4201a3f0640414e2b9dabd
generic_textual MODERATE https://github.com/moodle/moodle/commit/ac40d8b589820929fe4201a3f0640414e2b9dabd
cvssv3.1 6.1 https://moodle.org/mod/forum/discuss.php?d=349421
generic_textual MODERATE https://moodle.org/mod/forum/discuss.php?d=349421
cvssv3.1 6.1 https://nvd.nist.gov/vuln/detail/CVE-2017-2644
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2017-2644
cvssv3.1 6.1 https://web.archive.org/web/20210124004851/http://www.securityfocus.com/bid/96979
generic_textual MODERATE https://web.archive.org/web/20210124004851/http://www.securityfocus.com/bid/96979
cvssv3.1 6.1 https://web.archive.org/web/20210227004858/http://www.securitytracker.com/id/1038174
generic_textual MODERATE https://web.archive.org/web/20210227004858/http://www.securitytracker.com/id/1038174
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2017-2644
https://github.com/moodle/moodle
https://github.com/moodle/moodle/commit/ac40d8b589820929fe4201a3f0640414e2b9dabd
https://moodle.org/mod/forum/discuss.php?d=349421
https://web.archive.org/web/20210124004851/http://www.securityfocus.com/bid/96979
https://web.archive.org/web/20210227004858/http://www.securitytracker.com/id/1038174
http://www.securityfocus.com/bid/96979
CVE-2017-2644 https://nvd.nist.gov/vuln/detail/CVE-2017-2644
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/moodle/moodle
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: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/moodle/moodle/commit/ac40d8b589820929fe4201a3f0640414e2b9dabd
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: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://moodle.org/mod/forum/discuss.php?d=349421
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: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-2644
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: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://web.archive.org/web/20210124004851/http://www.securityfocus.com/bid/96979
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: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://web.archive.org/web/20210227004858/http://www.securitytracker.com/id/1038174
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
Exploit Prediction Scoring System (EPSS)
Percentile 0.521
EPSS Score 0.00285
Published At May 30, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-30T20:52:42.980283+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/moodle/moodle/CVE-2017-2644.yml 38.6.0