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CVE-2023-23923

Moodle: possible to set the preferred "start page" of other users

Description

The vulnerability was found Moodle which exists due to insufficient limitations on the "start page" preference. A remote attacker can set that preference for another user. The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

Timeline

  1. ID reserved

    By fedora

  2. · 29 days later

    Published

  3. · 18 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-23923, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.1High8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
EPSS (exploitation in 30 days)
0.96% · top 38% of all CVEs (11 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.2.

Affected products

  • moodle

    • affected 4.1.0 – < 4.1.1
    • affected 4.0.0 – < 4.0.6
    • affected 3.11.0 – < 3.11.12
    • affected < 3.9.19

Affected packages

From reviewed advisories of the GitHub Advisory Database.

References

References3

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

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[![CVE-2023-23923](https://cveledger.app/badge/CVE-2023-23923.svg)](https://cveledger.app/cve/CVE-2023-23923)

Record last updated .