CVE-2025-3636

Moodle: idor in moodle rss block allows unauthorized access to rss feeds

4.3 MediumFix available

A flaw was found in Moodle. This vulnerability allows unauthorized users to access and view RSS feeds due to insufficient capability checks.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.34%Up 0.3 points since Apr 26, 2025

What each source reports

CVE List Score used 4.3

Moodle: idor in moodle rss block allows unauthorized access to rss feeds

A flaw was found in Moodle. This vulnerability allows unauthorized users to access and view RSS feeds due to insufficient capability checks.

Record: CVE-2025-3636
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-639
Updated: 2026-11-02

EUVDEUVD-2025-12525 4.3

A flaw was found in Moodle. This vulnerability allows unauthorized users to access and view RSS feeds due to insufficient capability checks.

Record: EUVD-2025-12525
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-chmf-m33p-ph8m 4.3

Moodle allows IDOR in RSS block, which allows access to additional RSS feeds

A flaw was found in Moodle. This vulnerability allows unauthorized users to access and view RSS feeds due to insufficient capability checks.

Record: GHSA-chmf-m33p-ph8m
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-639
Updated: 2026-11-02

NVD 4.3

A flaw was found in Moodle. This vulnerability allows unauthorized users to access and view RSS feeds due to insufficient capability checks.

Record: CVE-2025-3636
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-639
Updated: 2026-11-02

OSV 4.3

Moodle: idor in moodle rss block allows unauthorized access to rss feeds

A flaw was found in Moodle. This vulnerability allows unauthorized users to access and view RSS feeds due to insufficient capability checks.

Record: CVE-2025-3636
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-639
Updated: 2026-11-02

OSVGHSA-chmf-m33p-ph8m 4.3

Moodle allows IDOR in RSS block, which allows access to additional RSS feeds

A flaw was found in Moodle. This vulnerability allows unauthorized users to access and view RSS feeds due to insufficient capability checks.

Record: GHSA-chmf-m33p-ph8m
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-639
Updated: 2026-11-02

OSVUBUNTU-CVE-2025-3636 4.3

A flaw was found in Moodle. This vulnerability allows unauthorized users to access and view RSS feeds due to insufficient capability checks.

Record: UBUNTU-CVE-2025-3636
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVBIT-moodle-2025-3636 No score

Moodle: idor in moodle rss block allows unauthorized access to rss feeds

A flaw was found in Moodle. This vulnerability allows unauthorized users to access and view RSS feeds due to insufficient capability checks.

Record: BIT-moodle-2025-3636
Updated: 2026-11-02

Affected products

moodle

Affected packages

Affected packages
Package	Affected	Fixed
`moodle/moodle` Packagist	before 4.1.18	4.1.18
`moodle/moodle` Packagist	4.3.0-beta up to 4.3.12	4.3.12
`moodle/moodle` Packagist	4.4.0-beta up to 4.4.8	4.4.8
`moodle/moodle` Packagist	4.5.0-beta up to 4.5.4	4.5.4
`moodle` Bitnami	before 4.1.18, 4.3.0 up to 4.3.12, 4.4.0 up to 4.4.8, 4.5.0 up to 4.5.4	4.1.184.3.124.4.84.5.4
`moodle/moodle` Packagist	before 4.1.18, plus listed versions v2.3.10v2.3.11v2.3.4v2.3.5v2.3.6 Show 45 moreShow less v2.3.7v2.3.8v2.3.9v2.4.0v2.4.0-rc1v2.4.1v2.4.10v2.4.11v2.4.2v2.4.3v2.4.4v2.4.5v2.4.6v2.4.7v2.4.8v2.4.9v2.5.0v2.5.0-betav2.5.0-rc1v2.5.1v2.5.2v2.5.3v2.5.4v2.5.5v2.5.6v2.5.7v2.5.8v2.5.9v2.6.0v2.6.0-betav2.6.0-rc1v2.6.1v2.6.10v2.6.11v2.6.2v2.6.3v2.6.4v2.6.5v2.6.6v2.6.7v2.6.8v2.6.9v2.7.0v2.7.0-betav2.7.0-rc1	4.1.18
`moodle/moodle` Packagist	4.3.0-beta up to 4.3.12, plus listed versions v4.3.0v4.3.0-betav4.3.0-rc1v4.3.0-rc2v4.3.1 Show 10 moreShow less v4.3.10v4.3.11v4.3.2v4.3.3v4.3.4v4.3.5v4.3.6v4.3.7v4.3.8v4.3.9	4.3.12
`moodle/moodle` Packagist	4.4.0-beta up to 4.4.8, plus listed versions v4.4.0v4.4.0-betav4.4.0-rc1v4.4.0-rc2v4.4.1 Show 6 moreShow less v4.4.2v4.4.3v4.4.4v4.4.5v4.4.6v4.4.7	4.4.8
`moodle/moodle` Packagist	4.5.0-beta up to 4.5.4, plus listed versions v4.5.0v4.5.0-betav4.5.0-rc1v4.5.0-rc2v4.5.1v4.5.2v4.5.3	4.5.4
`moodle` Ubuntu:Pro:16.04:LTS	All versions, plus listed versions 2.7.9+dfsg-12.7.10+dfsg-12.7.11+dfsg-12.7.11+dfsg-22.7.12+dfsg-13.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1	None known
`moodle` Ubuntu:Pro:18.04:LTS	All versions, plus listed versions 3.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-3636 is a medium vulnerability (CVSS 4.3) in Moodle, published April 25, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.34%, the 27th percentile. Fixed in moodle/moodle 4.1.18.

References

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This page doesn't list everything

Left out here: 300 versions. The JSON record has them.