How severe is CVE-2026-26046?

CVE-2026-26046 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-26046 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-26046?

CVE-2026-26046 affects Moodle. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-26046?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-26046 have an EU (EUVD) identifier?

Yes. CVE-2026-26046 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7389.

When was CVE-2026-26046 published?

CVE-2026-26046 was published on 2026-02-21 and last updated on 2026-06-17.

CVE-2026-26046

CVE-2026-26046 is a high-severity vulnerability in Moodle with a CVSS 3.x base score of 7.2. 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7389
Weakness: CWE-78
Affected product: Moodle
Published: 2026-02-21
Last modified: 2026-06-17

Description

A vulnerability was found in a Moodle TeX filter administrative setting where insufficient sanitization of configuration input could allow command injection. On sites where the TeX filter is enabled and ImageMagick is installed, a maliciously crafted setting value entered by an administrator could result in unintended system command execution. While exploitation requires administrative privileges, successful compromise could affect the entire Moodle server.

Frequently asked questions

What is CVE-2026-26046?: A vulnerability was found in a Moodle TeX filter administrative setting where insufficient sanitization of configuration input could allow command injection. On sites where the TeX filter is enabled and ImageMagick is installed, a maliciously crafted setting value entered by an administrator could result in unintended system command execution. While exploitation requires administrative privileges, successful compromise could affect the entire Moodle server.
How severe is CVE-2026-26046?: CVE-2026-26046 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-26046 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-26046?: CVE-2026-26046 affects Moodle. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-26046?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-26046 have an EU (EUVD) identifier?: Yes. CVE-2026-26046 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7389.
When was CVE-2026-26046 published?: CVE-2026-26046 was published on 2026-02-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

136.158.151.228 (ipv4-addr)
212.125.4.206 (ipv4-addr)
203.100.66.90 (ipv4-addr)