VulnerabilityDeferred
CVE-2025-60506
Moodle PDF Annotator plugin v1.5 release 9 allows stored cross-site scripting (XSS) via the Public Comments feature.
MEDIUM 5.4EPSS 0.20%
Does this matter?
Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own.
Description
Moodle PDF Annotator plugin v1.5 release 9 allows stored cross-site scripting (XSS) via the Public Comments feature. An attacker with a low-privileged account (e.g., Student) can inject arbitrary JavaScript payloads into a comment. When any other user (Student, Teacher, or Admin) views the annotated PDF, the payload is executed in their browser, leading to session hijacking, credential theft, or other attacker-controlled actions.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.20% probability · 10th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Source
- cve@mitre.org
References
- https://github.com/onurcangnc/moodle-xss-pdfannotator
- https://onurcangenc.com.tr/blog/moodle-xss-pdfannotator
- https://onurcangenc.com.tr/posts/cve-2025-60506-stored-cross-site-scripting-xss-in-moodle-pdf-annotator-plugin-v1-5-release-9/
- https://onurcangenc.com.tr/posts/cve-2025-60506-stored-cross-site-scripting-xss-in-moodle-pdf-annotator-plugin-v1-5-release-9/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.