CVE-2021-40694
CVE-2021-40694 is a medium-severity vulnerability in Moodle with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-116.
Key facts
- Severity: Medium (CVSS 3.x base score 4.9)
- EPSS exploit prediction: 1% (55th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-116
- Affected product: Moodle
- Published:
- Last modified:
Description
Insufficient escaping of the LaTeX preamble made it possible for site administrators to read files available to the HTTP server system account.
Frequently asked questions
- What is CVE-2021-40694?
- Insufficient escaping of the LaTeX preamble made it possible for site administrators to read files available to the HTTP server system account.
- How severe is CVE-2021-40694?
- CVE-2021-40694 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2021-40694 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-40694?
- CVE-2021-40694 affects Moodle. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-40694?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-40694 published?
- CVE-2021-40694 was published on 2022-09-29 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
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