CVE-2023-35131 json
Moodle: xss risk on groups page
published 2023-06-22 3 y ago modified 2026-09-08 2 mo ago also BIT-moodle-2023-35131 , EUVD-2023-1791 , GHSA-fwfj-8p36-rc64
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
Content on the groups page required additional sanitizing to prevent an XSS risk. This flaw affects Moodle versions 4.2, 4.1 to 4.1.3, 4.0 to 4.0.8 and 3.11 to 3.11.14.
Patch / fix
- packagist moodle/moodle 3.11.15, 4.0.9, 4.1.4, 4.2.1
- bitnami moodle 3.11.15, 4.0.9, 4.1.4, 4.2.1
- moodle moodle 3.11.15, 4.0.9, 4.1.4
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2023-35131 updated cvss 6.1
moodle: XSS risk on groups page
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.68% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| OSV | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | moodle/moodle | >=4.2.0, <4.2.1 >=4.1.0, <4.1.4 >=4.0.0, <4.0.9 <3.11.15 |
4.2.1 4.1.4 4.0.9 3.11.15 |
| bitnami | moodle | >=3.11.0, <3.11.15 >=4.0.0, <4.0.9 >=4.1.0, <4.1.4 >=4.2.0, <4.2.1 |
3.11.15 4.0.9 4.1.4 4.2.1 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
moodle.org
/mod/forum/discuss.php?d=447829
web, patch, vendor-advisory, advisory
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/7A72KX4WU6GK2CX4TKYFGFASPKOEOJFC/
vendor-advisory, web
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/I5QAEAGJ44NVXLAJFJXKARKC45OGEDXT/
vendor-advisory, web
-
bugzilla.redhat.com
/show_bug.cgi?id=2214369
issue-tracking, web
-
nvd.nist.gov
/vuln/detail/CVE-2023-35131
advisory, web
-
github.com
/moodle/moodle
package
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/7A72KX4WU6GK2CX4TKYFGFASPKOEOJFC
web
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/I5QAEAGJ44NVXLAJFJXKARKC45OGEDXT
web
-
lists.fedoraproject.org
/archives/list/package-announce@lists.fedoraproject.org/message/7A72KX4WU6GK2CX4TKYFGFASPKOEOJFC
web
-
lists.fedoraproject.org
/archives/list/package-announce@lists.fedoraproject.org/message/I5QAEAGJ44NVXLAJFJXKARKC45OGEDXT
web
-
git.moodle.org
/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-76683
web
Sources
- CVE List CVE-2023-35131
- GitHub Advisory GHSA-fwfj-8p36-rc64
- NVD CVE-2023-35131
- OSV BIT-moodle-2023-35131
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.