What is CVE-2025-26525?

CVE-2025-26525 is a high-severity vulnerability in Moodle, classified under Files or Directories Accessible to External Parties. CVSS score: 8.6/10. Published 2025-02-24.

How severe is CVE-2025-26525?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in Moodle

CVE-2025-26525

Insufficient sanitizing in the TeX notation filter resulted in an arbitrary file read risk on sites where pdfTeX is available (such as those with TeX Live installed).

Published 2025-02-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (36.2th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Moodle
Moodle Project — versions 4.5.0, 4.4.0, 4.3.0

Weakness classification (CWE)

CWE-552 — Files or Directories Accessible to External Parties

References

moodle.org/mod/forum/discuss.php (vendor-advisory, Vendor Advisory)
git.moodle.org/gw (Patch, patch)

Frequently asked questions

What is CVE-2025-26525?: CVE-2025-26525 is a high-severity vulnerability in Moodle, classified under Files or Directories Accessible to External Parties. CVSS score: 8.6/10. Published 2025-02-24.
How severe is CVE-2025-26525?: High severity. CVSS v3 base score is 8.6 out of 10.