CVE-2025-26525 | Arbitrary file read risk through pdfTeX

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 update: 2025-08-08 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-26525 is rated Moderate Risk (49.6/100): CVSS High severity, with low exploitation likelihood (EPSS 0.21%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-26525

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-04 0.29% 0.21% -0.08%
2 2026-03-28 0.16% 0.29% +0.13%
3 2025-11-10 — 0.16% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-26525

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.6 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 4.0 [email protected]

Weakness enumeration for CVE-2025-26525

GitHub Security Advisory for CVE-2025-26525

GHSA-4hmr-39vp-xfrr · Severity: high · Ecosystem: composer — Moodle has an arbitrary file read risk through pdfTeX

OS Trackers for CVE-2025-26525

vendor priority summary link
ubuntu medium CVE-2025-26525 medium priority: Ubuntu including 1 source packages (moodle), 9 status rows across 9 suites (bionic, focal, jammy, noble, oracular, plucky, questing, upstream, xenial): DNE 6, needs-triage 3. https://ubuntu.com/security/CVE-2025-26525

Affected software / configurations for CVE-2025-26525

Vendor Product Version Raw CPE
moodle moodle >= 4.1.0, < 4.1.16 cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle >= 4.3.0, < 4.3.10 cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle >= 4.4.0, < 4.4.6 cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle >= 4.5.0, < 4.5.2 cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*

References for CVE-2025-26525

cvelogic Threat Intelligence