How severe is CVE-2025-26530?

CVE-2025-26530 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-26530 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-26530?

CVE-2025-26530 affects Moodle. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-26530?

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-2025-26530 have an EU (EUVD) identifier?

Yes. CVE-2025-26530 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4271.

When was CVE-2025-26530 published?

CVE-2025-26530 was published on 2025-02-24 and last updated on 2026-06-17.

CVE-2025-26530

CVE-2025-26530 is a high-severity vulnerability in Moodle with a CVSS 3.x base score of 8.3. 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-79.

Key facts

Severity: High (CVSS 3.x base score 8.3)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-4271
Weakness: CWE-79
Affected product: Moodle
Published: 2025-02-24
Last modified: 2026-06-17

Description

The question bank filter required additional sanitizing to prevent a reflected XSS risk.

Frequently asked questions

What is CVE-2025-26530?: The question bank filter required additional sanitizing to prevent a reflected XSS risk.
How severe is CVE-2025-26530?: CVE-2025-26530 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-26530 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-26530?: CVE-2025-26530 affects Moodle. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-26530?: 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-2025-26530 have an EU (EUVD) identifier?: Yes. CVE-2025-26530 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4271.
When was CVE-2025-26530 published?: CVE-2025-26530 was published on 2025-02-24 and last updated on 2026-06-17.

References

Affected products (1)

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

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