Medium severity · published Jun 9, 2026
CVE-2026-46546
Frappe LMS: HTML injection in user-controlled metadata
5.4
CVSS
0.1%
EPSS
No
On KEV
Description
Frappe Learning Management System (LMS) is a learning system that helps users structure their content. Prior to version 2.53.0, an authenticated user could supply specially crafted content in certain user-editable fields that, when surfaced in page metadata, caused visitors' browsers to navigate to an attacker-chosen URL. This issue has been patched in version 2.53.0.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LM
lms · frappe
< 2.53.0 · source: vendor
LE
Learning · Frappe
before 2.52.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46546
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-46546
Vendor Advisory
https://github.com/frappe/lms/security/advisories/GHSA-2x47-gr9q-w6fv
More from lms
9.4
CVE-2026-39405
Frappe has Path Transversal via SCORM
8.7
CVE-2026-54343
Frappe LMS: Path Traversal in SCORM File Serving
7.1
CVE-2026-39385
Frappe LMS enrollment bypass in paid courses via unrelated batch
6.1
CVE-2026-34606
Stored XSS in Frappe LMS
4.3
CVE-2026-39415
Frappe Learning Management System has Client-Side Manipulation of Quiz Scores