🛡️ CVE-2023-5548 on Ubuntu — moodle

Distribution advisory

This page covers CVE-2023-5548 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. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity low, availability none.

CVSS metrics in full

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

• 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: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: None.
• Integrity impact: Low — limited, and the attacker does not choose what is affected.
• Availability impact: None.

Weakness class

UBUNTU-CVE-2023-5548 is classified as CWE-349: Acceptance of Extraneous Untrusted Data With Trusted Data. The product, when processing trusted data, accepts any untrusted data that is also included with the trusted data, treating the untrusted data as if it were trusted.

Affected software

UBUNTU-CVE-2023-5548 is recorded against 1 package.

• moodle

Timeline and source

Published on 9 November 2023 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-349: Acceptance of Extraneous Untrusted Data With Trusted Data) in other software:

• CVE-2026-50252 (9.3 Critical, published 22 Jul 2026)
• CVE-2024-53848 (7.1 High, published 7 Jul 2026)
• CVE-2026-41120 (9.8 Critical, published 25 Jun 2026)
• CVE-2026-33612 (7.5 High, published 25 Jun 2026)
• CVE-2026-45602 (9.1 Critical, published 9 Jun 2026)
• CVE-2026-42960 (10.0 Critical, published 20 May 2026)
• CVE-2026-46342 (2.0 Low, published 19 May 2026)
• CVE-2026-44572 (3.7 Low, published 13 May 2026)

CVE-2023-5548 on other distributions

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

Details

Affected Packages

References