CVE-2026-102580: moodle — Fix

Description

A flaw was found in Moodle. An authenticated attacker can supply an improperly validated audience class name to the Report Builder component, allowing arbitrary class instantiation. This vulnerability enables the unauthorized creation of internal program objects, which may result in unexpected application behavior.

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CVSS v3.1 Score

2.2

LOW

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N

EPSS — Exploit Prediction

0.0024

Probability of exploitation

0.14%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-470 CWE-470

Affected Products

Vendor	Product	Versions
moodle	moodle	< 4.5.13
moodle	moodle	5.0.0 — 5.0.9
moodle	moodle	5.1.0 — 5.1.6
moodle	moodle	5.2.0 — 5.2.2

References

Advisories & Patches

http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-89078 https://moodle.org/mod/forum/discuss.php?d=482498

Other References

https://access.redhat.com/security/cve/CVE-2026-102580 https://bugzilla.redhat.com/show_bug.cgi?id=2543635

Frequently Asked Questions

What is CVE-2026-102580? +

A flaw was found in Moodle. An authenticated attacker can supply an improperly validated audience class name to the Report Builder component, allowing arbitrary class instantiation. This vulnerability enables the unauthorized creation of internal program objects, which may result in unexpected application behavior. It has a CVSS v3.1 base score of 2.2 (LOW).

How severe is CVE-2026-102580? +

CVE-2026-102580 has a CVSS v3.1 score of 2.2 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0024, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-102580? +

CVE-2026-102580 affects products from moodle, specifically: moodle. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-102580? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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