CVE-2026-102588
Moodle: csrf in xml grade import
Description
A flaw was found in Moodle. The XML grade import feature lacks proper Cross-Site Request Forgery (CSRF) token validation. By tricking an authenticated user with grade management permissions into visiting a malicious webpage, an attacker can trigger unauthorized requests on the victim's behalf. This flaw allows a remote attacker to set or overwrite student grades without authorization.
INFO
Published Date :
Sept. 30, 2026, 9:17 a.m.
Last Modified :
Oct. 1, 2026, 3:51 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5 | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Moodle to a version with CSRF validation.
- Ensure grade import feature properly validates CSRF tokens.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-102588.
| URL | Resource |
|---|---|
| http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-84545 | Patch |
| https://access.redhat.com/security/cve/CVE-2026-102588 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2543643 | Issue Tracking Third Party Advisory |
| https://moodle.org/mod/forum/discuss.php?d=482507 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-102588 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-102588
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-102588 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-102588 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Oct. 01, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* versions up to (excluding) 4.5.13 *cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (excluding) 5.0.9 *cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* versions from (including) 5.1.0 up to (excluding) 5.1.6 *cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* versions from (including) 5.2.0 up to (excluding) 5.2.2 Added Reference Type Fedora Project: http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-84545 Types: Patch Added Reference Type Fedora Project: https://access.redhat.com/security/cve/CVE-2026-102588 Types: Third Party Advisory Added Reference Type Fedora Project: https://bugzilla.redhat.com/show_bug.cgi?id=2543643 Types: Issue Tracking, Third Party Advisory Added Reference Type Fedora Project: https://moodle.org/mod/forum/discuss.php?d=482507 Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 30, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-102588', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-09-30T13:56:19.288426Z'} -
New CVE Received by [email protected]
Sep. 30, 2026
Action Type Old Value New Value Added Description A flaw was found in Moodle. The XML grade import feature lacks proper Cross-Site Request Forgery (CSRF) token validation. By tricking an authenticated user with grade management permissions into visiting a malicious webpage, an attacker can trigger unauthorized requests on the victim's behalf. This flaw allows a remote attacker to set or overwrite student grades without authorization. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Added CWE CWE-346 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/102xxx/CVE-2026-102588.json">CVE-2026-102588</a> Added Reference http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-84545 Added Reference https://access.redhat.com/security/cve/CVE-2026-102588 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2543643 Added Reference https://moodle.org/mod/forum/discuss.php?d=482507