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Vulnerability details: VCID-cprq-r1rh-ffgk
Vulnerability ID VCID-cprq-r1rh-ffgk
Aliases CVE-2019-6970
GHSA-vjxx-54vw-q59f
Summary Moodle SSRF Vulnerability The `edit_blog.php` script allows a registered user to add external RSS feed resources. It was identified that this feature could be abused to be used as a SSRF attack vector by adding a malicious URL/TCP PORT in order to target internal network or an internet hosted server, bypassing firewall rules, IP filtering and more. This kind of vulnerability is then called “blind” because of no response available on Moodle web site, enforcing attacker to exploit it using a “time based” approach.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-918 Server-Side Request Forgery (SSRF)
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00367 https://api.first.org/data/v1/epss?cve=CVE-2019-6970
epss 0.00367 https://api.first.org/data/v1/epss?cve=CVE-2019-6970
cvssv3.1 7.5 https://cds.thalesgroup.com/en/tcs-cert/CVE-2019-6970
generic_textual HIGH https://cds.thalesgroup.com/en/tcs-cert/CVE-2019-6970
cvssv3.1 7.5 https://excellium-services.com/cert-xlm-advisory/cve-2019-6970
generic_textual HIGH https://excellium-services.com/cert-xlm-advisory/cve-2019-6970
cvssv3.1 7.5 https://github.com/moodle/moodle
generic_textual HIGH https://github.com/moodle/moodle
cvssv2 6.0 https://nvd.nist.gov/vuln/detail/CVE-2019-6970
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-6970
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-6970
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2019-6970
cvssv3.1 7.5 https://www.excellium-services.com/cert-xlm-advisory
generic_textual HIGH https://www.excellium-services.com/cert-xlm-advisory
cvssv3.1 7.5 https://www.excellium-services.com/cert-xlm-advisory/cve-2019-6970
generic_textual HIGH https://www.excellium-services.com/cert-xlm-advisory/cve-2019-6970
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2019-6970
https://cds.thalesgroup.com/en/tcs-cert/CVE-2019-6970
https://excellium-services.com/cert-xlm-advisory/cve-2019-6970
https://github.com/moodle/moodle
https://nvd.nist.gov/vuln/detail/CVE-2019-6970
https://www.excellium-services.com/cert-xlm-advisory
https://www.excellium-services.com/cert-xlm-advisory/cve-2019-6970
https://www.excellium-services.com/cert-xlm-advisory/cve-2019-6970/
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
GHSA-vjxx-54vw-q59f https://github.com/advisories/GHSA-vjxx-54vw-q59f
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://cds.thalesgroup.com/en/tcs-cert/CVE-2019-6970
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:H/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://excellium-services.com/cert-xlm-advisory/cve-2019-6970
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:H/PR:L/UI:N/S:U/C:H/I:H/A:H 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: AV:N/AC:M/Au:S/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-6970
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-6970
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:H/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-6970
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:H/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://www.excellium-services.com/cert-xlm-advisory
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:H/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://www.excellium-services.com/cert-xlm-advisory/cve-2019-6970
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 0.57843
EPSS Score 0.00367
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:30:43.919194+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-vjxx-54vw-q59f/GHSA-vjxx-54vw-q59f.json 36.1.3