🛡️ CVE-2022-40313 on Ubuntu — moodle

Distribution advisory

This page covers CVE-2022-40313 as tracked by Ubuntu, for the package moodle. No fixed version has been recorded for this distribution yet.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality low, integrity low, availability low.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: Low — the attack works reliably, with no preparation.
• Privileges required: None — an unauthenticated stranger can try it.
• User interaction: Required — someone has to click, open or visit something.
• Scope: Changed — a successful attack reaches components beyond the vulnerable one.
• Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
• Integrity impact: Low — limited, and the attacker does not choose what is affected.
• Availability impact: Low — limited, and the attacker does not choose what is affected.

Weakness class

UBUNTU-CVE-2022-40313 is classified as CWE-79: Cross-site Scripting (XSS). User-supplied data is written into a page without escaping, so attacker script runs in the browser of anyone who views it.

Affected software

UBUNTU-CVE-2022-40313 is recorded against 1 package.

• moodle

Timeline and source

Published on 30 September 2022 and last revised on 24 October 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.cve.org (Report)

Other advisories for this package

moodle has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CGA-9vcc-mq55-9mmm (published 5 Aug 2026)
• CGA-gh9j-5h6h-jq6x (published 5 Aug 2026)
• CVE-2022-50943 (5.0 Medium, published 28 May 2026)
• UBUNTU-CVE-2022-50943 (published 10 May 2026)
• CVE-2021-47857 (5.0 Medium, published 6 Mar 2026)
• CVE-2025-67847 (8.0 High, published 6 Mar 2026)
• CVE-2026-26045 (8.0 High, published 2 Mar 2026)
• CVE-2026-26047 (5.0 Medium, published 2 Mar 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-79: Cross-site Scripting (XSS)) in other software:

• CVE-2011-4924 (published 9 Jul 2026)
• CVE-2017-1000482 (published 9 Jul 2026)
• CVE-2021-3988 (published 7 Jul 2026)
• CVE-2017-20182 (published 7 Jul 2026)
• CVE-2014-0157 (published 6 Jul 2026)
• CVE-2017-1000426 (published 6 Jul 2026)
• CVE-2018-25045 (published 6 Jul 2026)
• CVE-2013-2209 (published 6 Jul 2026)

CVE-2022-40313 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Affected Packages

References